diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c04b930..e434c32 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
       - uses: actions/checkout@v1
       - uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 14
       - uses: actions/cache@master
         id: yarn-cache
         with:
@@ -30,7 +30,7 @@ jobs:
       - uses: actions/checkout@v1
       - uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 14
       - uses: actions/cache@master
         id: yarn-cache
         with:
@@ -66,7 +66,7 @@ jobs:
       - uses: actions/checkout@v1
       - uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 14
       - uses: actions/cache@master
         id: yarn-cache
         with:
@@ -76,27 +76,27 @@ jobs:
           key: ${{ runner.os }}-lerna-${{ hashFiles('**/package.json', '**/yarn.lock') }}
       - run: yarn test
 
-  # coverage:
-  #   name: Coverage
-  #   runs-on: ubuntu-latest
-  #   needs: [install]
-  #   steps:
-  #     - uses: actions/checkout@v1
-  #     - uses: actions/setup-node@v1
-  #       with:
-  #         node-version: 12
-  #     - uses: actions/cache@master
-  #       id: yarn-cache
-  #       with:
-  #         path: |
-  #           node_modules
-  #           */*/node_modules
-  #         key: ${{ runner.os }}-lerna-${{ hashFiles('**/package.json', '**/yarn.lock') }}
-  #     - run: yarn coverage || true
-  #     - name: Coveralls
-  #       uses: coverallsapp/github-action@master
-  #       with:
-  #         github-token: ${{ secrets.GITHUB_TOKEN }}
+  coverage:
+    name: Coverage
+    runs-on: ubuntu-latest
+    needs: [install]
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions/setup-node@v1
+        with:
+          node-version: 14
+      - uses: actions/cache@master
+        id: yarn-cache
+        with:
+          path: |
+            node_modules
+            */*/node_modules
+          key: ${{ runner.os }}-lerna-${{ hashFiles('**/package.json', '**/yarn.lock') }}
+      - run: yarn coverage
+      - uses: actions/upload-artifact@v2
+        with:
+          name: test-coverage
+          path: coverage
 
   build:
     name: Is latest build commited?
@@ -106,7 +106,7 @@ jobs:
       - uses: actions/checkout@v1
       - uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 14
       - uses: actions/cache@master
         id: yarn-cache
         with:
diff --git a/hardhat.config.ts b/hardhat.config.ts
index 4ca5c32..40fcdac 100644
--- a/hardhat.config.ts
+++ b/hardhat.config.ts
@@ -12,6 +12,7 @@ import '@nomiclabs/hardhat-ethers'
 
 import 'hardhat-gas-reporter'
 import '@nomiclabs/hardhat-etherscan'
+import "solidity-coverage"
 
 const chainIds = {
   hardhat: 31337,
diff --git a/package.json b/package.json
index 78e7c7e..bb853d9 100644
--- a/package.json
+++ b/package.json
@@ -13,6 +13,7 @@
     "adapter:gen": "rimraf src/gen/typechain && typechain --target ethers-v5 --out-dir src/gen/typechain \"./src/artifacts/contracts/**/*[^dbg].json\"",
     "adapter:build": "rimraf src/gen/adapter && tsc -p ./src/tsconfig.json",
     "test": "yarn hardhat test",
+    "coverage": "hardhat coverage",
     "release": "yarn publish src --access public",
     "release-list": "cd src && rm -f ./*niftyup-contracts-v*.tgz && yarn pack && tar --list -zf *niftyup-contracts-v*.tgz",
     "lint:ts": "eslint -c .eslintrc.js './**/*.ts'",
@@ -42,6 +43,7 @@
     "prettier-plugin-solidity": "^1.0.0-beta.18",
     "solhint": "^3.3.6",
     "solhint-plugin-prettier": "^0.0.5",
+    "solidity-coverage": "^0.7.17",
     "ts-generator": "^0.1.1",
     "ts-node": "^10.2.1",
     "typechain": "^5.1.2",
diff --git a/src/artifacts/@0xsequence/erc-1155/contracts/tokens/ERC1155PackedBalance/ERC1155MintBurnPackedBalance.sol/ERC1155MintBurnPackedBalance.json b/src/artifacts/@0xsequence/erc-1155/contracts/tokens/ERC1155PackedBalance/ERC1155MintBurnPackedBalance.sol/ERC1155MintBurnPackedBalance.json
index 9db9a49..bf60140 100644
--- a/src/artifacts/@0xsequence/erc-1155/contracts/tokens/ERC1155PackedBalance/ERC1155MintBurnPackedBalance.sol/ERC1155MintBurnPackedBalance.json
+++ b/src/artifacts/@0xsequence/erc-1155/contracts/tokens/ERC1155PackedBalance/ERC1155MintBurnPackedBalance.sol/ERC1155MintBurnPackedBalance.json
@@ -3,6 +3,17 @@
   "contractName": "ERC1155MintBurnPackedBalance",
   "sourceName": "@0xsequence/erc-1155/contracts/tokens/ERC1155PackedBalance/ERC1155MintBurnPackedBalance.sol",
   "abi": [
+    {
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "_idsBitsSize",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "constructor"
+    },
     {
       "anonymous": false,
       "inputs": [
@@ -102,6 +113,19 @@
       "name": "TransferSingle",
       "type": "event"
     },
+    {
+      "inputs": [],
+      "name": "IDS_BITS_SIZE",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
     {
       "inputs": [
         {
@@ -171,7 +195,7 @@
           "type": "uint256"
         }
       ],
-      "stateMutability": "pure",
+      "stateMutability": "view",
       "type": "function"
     },
     {
@@ -195,7 +219,7 @@
           "type": "uint256"
         }
       ],
-      "stateMutability": "pure",
+      "stateMutability": "view",
       "type": "function"
     },
     {
@@ -326,8 +350,8 @@
       "type": "function"
     }
   ],
-  "bytecode": "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   "linkReferences": {},
   "deployedLinkReferences": {}
 }
diff --git a/src/artifacts/@0xsequence/erc-1155/contracts/tokens/ERC1155PackedBalance/ERC1155PackedBalance.sol/ERC1155PackedBalance.json b/src/artifacts/@0xsequence/erc-1155/contracts/tokens/ERC1155PackedBalance/ERC1155PackedBalance.sol/ERC1155PackedBalance.json
index db9479a..97ba2fc 100644
--- a/src/artifacts/@0xsequence/erc-1155/contracts/tokens/ERC1155PackedBalance/ERC1155PackedBalance.sol/ERC1155PackedBalance.json
+++ b/src/artifacts/@0xsequence/erc-1155/contracts/tokens/ERC1155PackedBalance/ERC1155PackedBalance.sol/ERC1155PackedBalance.json
@@ -3,6 +3,17 @@
   "contractName": "ERC1155PackedBalance",
   "sourceName": "@0xsequence/erc-1155/contracts/tokens/ERC1155PackedBalance/ERC1155PackedBalance.sol",
   "abi": [
+    {
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "_idsBitsSize",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "constructor"
+    },
     {
       "anonymous": false,
       "inputs": [
@@ -102,6 +113,19 @@
       "name": "TransferSingle",
       "type": "event"
     },
+    {
+      "inputs": [],
+      "name": "IDS_BITS_SIZE",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
     {
       "inputs": [
         {
@@ -171,7 +195,7 @@
           "type": "uint256"
         }
       ],
-      "stateMutability": "pure",
+      "stateMutability": "view",
       "type": "function"
     },
     {
@@ -195,7 +219,7 @@
           "type": "uint256"
         }
       ],
-      "stateMutability": "pure",
+      "stateMutability": "view",
       "type": "function"
     },
     {
@@ -326,8 +350,8 @@
       "type": "function"
     }
   ],
-  "bytecode": 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   "linkReferences": {},
   "deployedLinkReferences": {}
 }
diff --git a/src/artifacts/@openzeppelin/contracts/proxy/Clones.sol/Clones.json b/src/artifacts/@openzeppelin/contracts/proxy/Clones.sol/Clones.json
new file mode 100644
index 0000000..bfeb9fb
--- /dev/null
+++ b/src/artifacts/@openzeppelin/contracts/proxy/Clones.sol/Clones.json
@@ -0,0 +1,10 @@
+{
+  "_format": "hh-sol-artifact-1",
+  "contractName": "Clones",
+  "sourceName": "@openzeppelin/contracts/proxy/Clones.sol",
+  "abi": [],
+  "bytecode": "0x60566023600b82828239805160001a607314601657fe5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea2646970667358221220844b8a2921660edc3cd3c4751c12436811a7acb432eaf78b6b14d1550f6c756a64736f6c63430007040033",
+  "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea2646970667358221220844b8a2921660edc3cd3c4751c12436811a7acb432eaf78b6b14d1550f6c756a64736f6c63430007040033",
+  "linkReferences": {},
+  "deployedLinkReferences": {}
+}
diff --git a/src/artifacts/contracts/NiftyupFactory.sol/NiftyupFactory.json b/src/artifacts/contracts/NiftyupFactory.sol/NiftyupFactory.json
new file mode 100644
index 0000000..18c4ea7
--- /dev/null
+++ b/src/artifacts/contracts/NiftyupFactory.sol/NiftyupFactory.json
@@ -0,0 +1,98 @@
+{
+  "_format": "hh-sol-artifact-1",
+  "contractName": "NiftyupFactory",
+  "sourceName": "contracts/NiftyupFactory.sol",
+  "abi": [
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "uint256",
+          "name": "bits",
+          "type": "uint256"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "implementation",
+          "type": "address"
+        }
+      ],
+      "name": "CreatedImplementationContract",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "creator",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "nft",
+          "type": "address"
+        }
+      ],
+      "name": "CreatedNFTContract",
+      "type": "event"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "_owner",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "_bits",
+          "type": "uint256"
+        }
+      ],
+      "name": "create",
+      "outputs": [
+        {
+          "internalType": "address",
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "name": "implementations",
+      "outputs": [
+        {
+          "internalType": "contract NiftyupNFT",
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    }
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+  "linkReferences": {},
+  "deployedLinkReferences": {}
+}
diff --git a/src/artifacts/contracts/NiftyupNFT.sol/NiftyupNFT.json b/src/artifacts/contracts/NiftyupNFT.sol/NiftyupNFT.json
index 7803efe..2abed11 100644
--- a/src/artifacts/contracts/NiftyupNFT.sol/NiftyupNFT.json
+++ b/src/artifacts/contracts/NiftyupNFT.sol/NiftyupNFT.json
@@ -3,6 +3,17 @@
   "contractName": "NiftyupNFT",
   "sourceName": "contracts/NiftyupNFT.sol",
   "abi": [
+    {
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "_bits",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "nonpayable",
+      "type": "constructor"
+    },
     {
       "anonymous": false,
       "inputs": [
@@ -144,6 +155,19 @@
       "stateMutability": "nonpayable",
       "type": "fallback"
     },
+    {
+      "inputs": [],
+      "name": "IDS_BITS_SIZE",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
     {
       "inputs": [
         {
@@ -277,7 +301,7 @@
           "type": "uint256"
         }
       ],
-      "stateMutability": "pure",
+      "stateMutability": "view",
       "type": "function"
     },
     {
@@ -301,7 +325,20 @@
           "type": "uint256"
         }
       ],
-      "stateMutability": "pure",
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "_owner",
+          "type": "address"
+        }
+      ],
+      "name": "initialize",
+      "outputs": [],
+      "stateMutability": "nonpayable",
       "type": "function"
     },
     {
@@ -525,8 +562,8 @@
       "type": "function"
     }
   ],
-  "bytecode": 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   "linkReferences": {},
   "deployedLinkReferences": {}
 }
diff --git a/src/artifacts/@openzeppelin/contracts/utils/Context.sol/Context.json b/src/artifacts/contracts/utils/Initializable.sol/Initializable.json
similarity index 63%
rename from src/artifacts/@openzeppelin/contracts/utils/Context.sol/Context.json
rename to src/artifacts/contracts/utils/Initializable.sol/Initializable.json
index 8fe86fc..7b58cc2 100644
--- a/src/artifacts/@openzeppelin/contracts/utils/Context.sol/Context.json
+++ b/src/artifacts/contracts/utils/Initializable.sol/Initializable.json
@@ -1,7 +1,7 @@
 {
   "_format": "hh-sol-artifact-1",
-  "contractName": "Context",
-  "sourceName": "@openzeppelin/contracts/utils/Context.sol",
+  "contractName": "Initializable",
+  "sourceName": "contracts/utils/Initializable.sol",
   "abi": [],
   "bytecode": "0x",
   "deployedBytecode": "0x",
diff --git a/src/artifacts/@openzeppelin/contracts/access/Ownable.sol/Ownable.json b/src/artifacts/contracts/utils/Ownable.sol/Ownable.json
similarity index 95%
rename from src/artifacts/@openzeppelin/contracts/access/Ownable.sol/Ownable.json
rename to src/artifacts/contracts/utils/Ownable.sol/Ownable.json
index 33254f2..1983eed 100644
--- a/src/artifacts/@openzeppelin/contracts/access/Ownable.sol/Ownable.json
+++ b/src/artifacts/contracts/utils/Ownable.sol/Ownable.json
@@ -1,7 +1,7 @@
 {
   "_format": "hh-sol-artifact-1",
   "contractName": "Ownable",
-  "sourceName": "@openzeppelin/contracts/access/Ownable.sol",
+  "sourceName": "contracts/utils/Ownable.sol",
   "abi": [
     {
       "anonymous": false,
diff --git a/src/contracts/NiftyupFactory.sol b/src/contracts/NiftyupFactory.sol
new file mode 100644
index 0000000..298a186
--- /dev/null
+++ b/src/contracts/NiftyupFactory.sol
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.7.0;
+
+import '@openzeppelin/contracts/proxy/Clones.sol';
+import "./NiftyupNFT.sol";
+
+
+contract NiftyupFactory {
+  mapping(uint256 => NiftyupNFT) public implementations;
+
+  event CreatedNFTContract(address indexed creator, address indexed owner, address indexed nft);
+  event CreatedImplementationContract(uint256 indexed bits, address indexed implementation);
+
+  /**
+   * @notice Creates a new NiftyNFT proxy contract instance
+   * @param _owner  Owner of the NFT contract
+   * @param _bits   Number of bits used to store balances
+   * @return Address of the created NFT contract
+   */
+  function create(address _owner, uint256 _bits) external returns (address) {
+    NiftyupNFT clone = NiftyupNFT(Clones.clone(implementationFor(_bits)));
+    clone.initialize(_owner);
+
+    emit CreatedNFTContract(msg.sender, _owner, address(clone));
+
+    return address(clone);
+  }
+
+  function implementationFor(uint256 _bits) internal returns (address) {
+    require(_bits != 0 && _bits < 256 && 256 % _bits == 0, "NiftyupFactory#implementationFor: INVALID_BITS");
+
+    address existing = address(implementations[_bits]);
+    if (existing != address(0)) {
+      return existing;
+    }
+
+    NiftyupNFT imp = new NiftyupNFT(_bits);
+    emit CreatedImplementationContract(_bits, address(imp));
+
+    imp.initialize(address(this));
+    implementations[_bits] = imp;
+    return address(imp);
+  }
+}
diff --git a/src/contracts/NiftyupNFT.sol b/src/contracts/NiftyupNFT.sol
index d60a46f..334aca5 100644
--- a/src/contracts/NiftyupNFT.sol
+++ b/src/contracts/NiftyupNFT.sol
@@ -1,11 +1,27 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.7.4;
+pragma solidity ^0.7.0;
 
 import '@0xsequence/erc-1155/contracts/tokens/ERC1155PackedBalance/ERC1155MintBurnPackedBalance.sol';
 import '@0xsequence/erc-1155/contracts/tokens/ERC1155/ERC1155Metadata.sol';
-import '@openzeppelin/contracts/access/Ownable.sol';
 
-contract NiftyupNFT is ERC1155MintBurnPackedBalance, ERC1155Metadata, Ownable {
+import './utils/Initializable.sol';
+import './utils/Ownable.sol';
+
+
+contract NiftyupNFT is Initializable, Ownable, ERC1155MintBurnPackedBalance, ERC1155Metadata {
+  constructor (uint256 _bits) ERC1155MintBurnPackedBalance(_bits) {}
+
+  /**
+   * @notice Constructor for proxy instances, initializes the contract with given values
+   * @dev This method can only be called once
+   * @param _owner             Owner of the NFT contract
+   */
+  function initialize(
+    address _owner
+  ) external initializer {
+    _transferOwnership(_owner);
+  }
+
   /**
    * @notice Mint _amount of tokens of a given id, if allowed.
    * @param _to      The address to mint tokens to
diff --git a/src/contracts/utils/Initializable.sol b/src/contracts/utils/Initializable.sol
new file mode 100644
index 0000000..5f807e6
--- /dev/null
+++ b/src/contracts/utils/Initializable.sol
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: MIT
+pragma solidity >=0.4.24 <0.8.0;
+
+
+/**
+ * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
+ * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an
+ * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
+ * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
+ *
+ * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
+ * possible by providing the encoded function call as the `_data` argument to {UpgradeableProxy-constructor}.
+ *
+ * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
+ * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
+ *
+ * Source: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/8e0296096449d9b1cd7c5631e917330635244c37/contracts/proxy/Initializable.sol
+ *
+ */
+abstract contract Initializable {
+  /**
+    * @dev Indicates that the contract has been initialized.
+    */
+  bool private _initialized;
+
+  /**
+    * @dev Modifier to protect an initializer function from being invoked twice.
+    */
+  modifier initializer() {
+    require(!_initialized, "Initializable: contract is already initialized");
+    _initialized = true;
+
+    _;
+  }
+}
diff --git a/src/contracts/utils/Ownable.sol b/src/contracts/utils/Ownable.sol
new file mode 100644
index 0000000..3c25b77
--- /dev/null
+++ b/src/contracts/utils/Ownable.sol
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.7.0;
+
+
+/**
+ * @dev Contract module which provides a basic access control mechanism, where
+ * there is an account (an owner) that can be granted exclusive access to
+ * specific functions.
+ *
+ * By default, the owner account will be the one that deploys the contract. This
+ * can later be changed with {transferOwnership}.
+ *
+ * This module is used through inheritance. It will make available the modifier
+ * `onlyOwner`, which can be applied to your functions to restrict their use to
+ * the owner.
+ *
+ * Source: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/e6f26b46fc8015f1b9b09bb85297464069302125/contracts/access/Ownable.sol
+ *
+ */
+abstract contract Ownable {
+  address private _owner;
+
+  event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
+
+  /**
+   * @dev Initializes the contract setting the deployer as the initial owner.
+   */
+  constructor() {
+    _transferOwnership(msg.sender);
+  }
+
+  /**
+   * @dev Returns the address of the current owner.
+   */
+  function owner() public view virtual returns (address) {
+    return _owner;
+  }
+
+  /**
+   * @dev Throws if called by any account other than the owner.
+   */
+  modifier onlyOwner() {
+    require(owner() == msg.sender, "Ownable: caller is not the owner");
+    _;
+  }
+
+  /**
+   * @dev Leaves the contract without owner. It will not be possible to call
+   * `onlyOwner` functions anymore. Can only be called by the current owner.
+   *
+   * NOTE: Renouncing ownership will leave the contract without an owner,
+   * thereby removing any functionality that is only available to the owner.
+   */
+  function renounceOwnership() public virtual onlyOwner {
+    _transferOwnership(address(0));
+  }
+
+  /**
+   * @dev Transfers ownership of the contract to a new account (`newOwner`).
+   * Can only be called by the current owner.
+   */
+  function transferOwnership(address newOwner) public virtual onlyOwner {
+    require(newOwner != address(0), "Ownable: new owner is the zero address");
+    _transferOwnership(newOwner);
+  }
+
+  /**
+   * @dev Transfers ownership of the contract to a new account (`newOwner`).
+   * Internal function without access restriction.
+   */
+  function _transferOwnership(address newOwner) internal virtual {
+    address oldOwner = _owner;
+    _owner = newOwner;
+    emit OwnershipTransferred(oldOwner, newOwner);
+  }
+}
diff --git a/src/gen/adapter/factories/NiftyupFactory__factory.js b/src/gen/adapter/factories/NiftyupFactory__factory.js
new file mode 100644
index 0000000..d14d770
--- /dev/null
+++ b/src/gen/adapter/factories/NiftyupFactory__factory.js
@@ -0,0 +1,128 @@
+"use strict";
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.NiftyupFactory__factory = void 0;
+const ethers_1 = require("ethers");
+const _abi = [
+    {
+        anonymous: false,
+        inputs: [
+            {
+                indexed: true,
+                internalType: "uint256",
+                name: "bits",
+                type: "uint256",
+            },
+            {
+                indexed: true,
+                internalType: "address",
+                name: "implementation",
+                type: "address",
+            },
+        ],
+        name: "CreatedImplementationContract",
+        type: "event",
+    },
+    {
+        anonymous: false,
+        inputs: [
+            {
+                indexed: true,
+                internalType: "address",
+                name: "creator",
+                type: "address",
+            },
+            {
+                indexed: true,
+                internalType: "address",
+                name: "owner",
+                type: "address",
+            },
+            {
+                indexed: true,
+                internalType: "address",
+                name: "nft",
+                type: "address",
+            },
+        ],
+        name: "CreatedNFTContract",
+        type: "event",
+    },
+    {
+        inputs: [
+            {
+                internalType: "address",
+                name: "_owner",
+                type: "address",
+            },
+            {
+                internalType: "uint256",
+                name: "_bits",
+                type: "uint256",
+            },
+        ],
+        name: "create",
+        outputs: [
+            {
+                internalType: "address",
+                name: "",
+                type: "address",
+            },
+        ],
+        stateMutability: "nonpayable",
+        type: "function",
+    },
+    {
+        inputs: [
+            {
+                internalType: "uint256",
+                name: "",
+                type: "uint256",
+            },
+        ],
+        name: "implementations",
+        outputs: [
+            {
+                internalType: "contract NiftyupNFT",
+                name: "",
+                type: "address",
+            },
+        ],
+        stateMutability: "view",
+        type: "function",
+    },
+];
+const _bytecode = 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+class NiftyupFactory__factory extends ethers_1.ContractFactory {
+    constructor(...args) {
+        if (args.length === 1) {
+            super(_abi, _bytecode, args[0]);
+        }
+        else {
+            super(...args);
+        }
+    }
+    deploy(overrides) {
+        return super.deploy(overrides || {});
+    }
+    getDeployTransaction(overrides) {
+        return super.getDeployTransaction(overrides || {});
+    }
+    attach(address) {
+        return super.attach(address);
+    }
+    connect(signer) {
+        return super.connect(signer);
+    }
+    static createInterface() {
+        return new ethers_1.utils.Interface(_abi);
+    }
+    static connect(address, signerOrProvider) {
+        return new ethers_1.Contract(address, _abi, signerOrProvider);
+    }
+}
+exports.NiftyupFactory__factory = NiftyupFactory__factory;
+NiftyupFactory__factory.bytecode = _bytecode;
+NiftyupFactory__factory.abi = _abi;
diff --git a/src/gen/adapter/factories/NiftyupNFT__factory.js b/src/gen/adapter/factories/NiftyupNFT__factory.js
index 2de2a39..0973823 100644
--- a/src/gen/adapter/factories/NiftyupNFT__factory.js
+++ b/src/gen/adapter/factories/NiftyupNFT__factory.js
@@ -6,6 +6,17 @@ Object.defineProperty(exports, "__esModule", { value: true });
 exports.NiftyupNFT__factory = void 0;
 const ethers_1 = require("ethers");
 const _abi = [
+    {
+        inputs: [
+            {
+                internalType: "uint256",
+                name: "_bits",
+                type: "uint256",
+            },
+        ],
+        stateMutability: "nonpayable",
+        type: "constructor",
+    },
     {
         anonymous: false,
         inputs: [
@@ -147,6 +158,19 @@ const _abi = [
         stateMutability: "nonpayable",
         type: "fallback",
     },
+    {
+        inputs: [],
+        name: "IDS_BITS_SIZE",
+        outputs: [
+            {
+                internalType: "uint256",
+                name: "",
+                type: "uint256",
+            },
+        ],
+        stateMutability: "view",
+        type: "function",
+    },
     {
         inputs: [
             {
@@ -280,7 +304,7 @@ const _abi = [
                 type: "uint256",
             },
         ],
-        stateMutability: "pure",
+        stateMutability: "view",
         type: "function",
     },
     {
@@ -304,7 +328,20 @@ const _abi = [
                 type: "uint256",
             },
         ],
-        stateMutability: "pure",
+        stateMutability: "view",
+        type: "function",
+    },
+    {
+        inputs: [
+            {
+                internalType: "address",
+                name: "_owner",
+                type: "address",
+            },
+        ],
+        name: "initialize",
+        outputs: [],
+        stateMutability: "nonpayable",
         type: "function",
     },
     {
@@ -528,16 +565,21 @@ const _abi = [
         type: "function",
     },
 ];
-const _bytecode = 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 class NiftyupNFT__factory extends ethers_1.ContractFactory {
-    constructor(signer) {
-        super(_abi, _bytecode, signer);
+    constructor(...args) {
+        if (args.length === 1) {
+            super(_abi, _bytecode, args[0]);
+        }
+        else {
+            super(...args);
+        }
     }
-    deploy(overrides) {
-        return super.deploy(overrides || {});
+    deploy(_bits, overrides) {
+        return super.deploy(_bits, overrides || {});
     }
-    getDeployTransaction(overrides) {
-        return super.getDeployTransaction(overrides || {});
+    getDeployTransaction(_bits, overrides) {
+        return super.getDeployTransaction(_bits, overrides || {});
     }
     attach(address) {
         return super.attach(address);
diff --git a/src/gen/adapter/factories/Ownable__factory.js b/src/gen/adapter/factories/Ownable__factory.js
new file mode 100644
index 0000000..3f535dc
--- /dev/null
+++ b/src/gen/adapter/factories/Ownable__factory.js
@@ -0,0 +1,71 @@
+"use strict";
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Ownable__factory = void 0;
+const ethers_1 = require("ethers");
+const _abi = [
+    {
+        anonymous: false,
+        inputs: [
+            {
+                indexed: true,
+                internalType: "address",
+                name: "previousOwner",
+                type: "address",
+            },
+            {
+                indexed: true,
+                internalType: "address",
+                name: "newOwner",
+                type: "address",
+            },
+        ],
+        name: "OwnershipTransferred",
+        type: "event",
+    },
+    {
+        inputs: [],
+        name: "owner",
+        outputs: [
+            {
+                internalType: "address",
+                name: "",
+                type: "address",
+            },
+        ],
+        stateMutability: "view",
+        type: "function",
+    },
+    {
+        inputs: [],
+        name: "renounceOwnership",
+        outputs: [],
+        stateMutability: "nonpayable",
+        type: "function",
+    },
+    {
+        inputs: [
+            {
+                internalType: "address",
+                name: "newOwner",
+                type: "address",
+            },
+        ],
+        name: "transferOwnership",
+        outputs: [],
+        stateMutability: "nonpayable",
+        type: "function",
+    },
+];
+class Ownable__factory {
+    static createInterface() {
+        return new ethers_1.utils.Interface(_abi);
+    }
+    static connect(address, signerOrProvider) {
+        return new ethers_1.Contract(address, _abi, signerOrProvider);
+    }
+}
+exports.Ownable__factory = Ownable__factory;
+Ownable__factory.abi = _abi;
diff --git a/src/gen/adapter/index.js b/src/gen/adapter/index.js
index 58556c0..a3b4dcb 100644
--- a/src/gen/adapter/index.js
+++ b/src/gen/adapter/index.js
@@ -1,5 +1,9 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.NiftyupNFT__factory = void 0;
+exports.Ownable__factory = exports.NiftyupNFT__factory = exports.NiftyupFactory__factory = void 0;
+var NiftyupFactory__factory_1 = require("./factories/NiftyupFactory__factory");
+Object.defineProperty(exports, "NiftyupFactory__factory", { enumerable: true, get: function () { return NiftyupFactory__factory_1.NiftyupFactory__factory; } });
 var NiftyupNFT__factory_1 = require("./factories/NiftyupNFT__factory");
 Object.defineProperty(exports, "NiftyupNFT__factory", { enumerable: true, get: function () { return NiftyupNFT__factory_1.NiftyupNFT__factory; } });
+var Ownable__factory_1 = require("./factories/Ownable__factory");
+Object.defineProperty(exports, "Ownable__factory", { enumerable: true, get: function () { return Ownable__factory_1.Ownable__factory; } });
diff --git a/src/gen/typechain/NiftyupFactory.d.ts b/src/gen/typechain/NiftyupFactory.d.ts
new file mode 100644
index 0000000..974194d
--- /dev/null
+++ b/src/gen/typechain/NiftyupFactory.d.ts
@@ -0,0 +1,203 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import {
+  ethers,
+  EventFilter,
+  Signer,
+  BigNumber,
+  BigNumberish,
+  PopulatedTransaction,
+  BaseContract,
+  ContractTransaction,
+  Overrides,
+  CallOverrides,
+} from "ethers";
+import { BytesLike } from "@ethersproject/bytes";
+import { Listener, Provider } from "@ethersproject/providers";
+import { FunctionFragment, EventFragment, Result } from "@ethersproject/abi";
+import type { TypedEventFilter, TypedEvent, TypedListener } from "./common";
+
+interface NiftyupFactoryInterface extends ethers.utils.Interface {
+  functions: {
+    "create(address,uint256)": FunctionFragment;
+    "implementations(uint256)": FunctionFragment;
+  };
+
+  encodeFunctionData(
+    functionFragment: "create",
+    values: [string, BigNumberish]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "implementations",
+    values: [BigNumberish]
+  ): string;
+
+  decodeFunctionResult(functionFragment: "create", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "implementations",
+    data: BytesLike
+  ): Result;
+
+  events: {
+    "CreatedImplementationContract(uint256,address)": EventFragment;
+    "CreatedNFTContract(address,address,address)": EventFragment;
+  };
+
+  getEvent(
+    nameOrSignatureOrTopic: "CreatedImplementationContract"
+  ): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "CreatedNFTContract"): EventFragment;
+}
+
+export type CreatedImplementationContractEvent = TypedEvent<
+  [BigNumber, string] & { bits: BigNumber; implementation: string }
+>;
+
+export type CreatedNFTContractEvent = TypedEvent<
+  [string, string, string] & { creator: string; owner: string; nft: string }
+>;
+
+export class NiftyupFactory extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  listeners<EventArgsArray extends Array<any>, EventArgsObject>(
+    eventFilter?: TypedEventFilter<EventArgsArray, EventArgsObject>
+  ): Array<TypedListener<EventArgsArray, EventArgsObject>>;
+  off<EventArgsArray extends Array<any>, EventArgsObject>(
+    eventFilter: TypedEventFilter<EventArgsArray, EventArgsObject>,
+    listener: TypedListener<EventArgsArray, EventArgsObject>
+  ): this;
+  on<EventArgsArray extends Array<any>, EventArgsObject>(
+    eventFilter: TypedEventFilter<EventArgsArray, EventArgsObject>,
+    listener: TypedListener<EventArgsArray, EventArgsObject>
+  ): this;
+  once<EventArgsArray extends Array<any>, EventArgsObject>(
+    eventFilter: TypedEventFilter<EventArgsArray, EventArgsObject>,
+    listener: TypedListener<EventArgsArray, EventArgsObject>
+  ): this;
+  removeListener<EventArgsArray extends Array<any>, EventArgsObject>(
+    eventFilter: TypedEventFilter<EventArgsArray, EventArgsObject>,
+    listener: TypedListener<EventArgsArray, EventArgsObject>
+  ): this;
+  removeAllListeners<EventArgsArray extends Array<any>, EventArgsObject>(
+    eventFilter: TypedEventFilter<EventArgsArray, EventArgsObject>
+  ): this;
+
+  listeners(eventName?: string): Array<Listener>;
+  off(eventName: string, listener: Listener): this;
+  on(eventName: string, listener: Listener): this;
+  once(eventName: string, listener: Listener): this;
+  removeListener(eventName: string, listener: Listener): this;
+  removeAllListeners(eventName?: string): this;
+
+  queryFilter<EventArgsArray extends Array<any>, EventArgsObject>(
+    event: TypedEventFilter<EventArgsArray, EventArgsObject>,
+    fromBlockOrBlockhash?: string | number | undefined,
+    toBlock?: string | number | undefined
+  ): Promise<Array<TypedEvent<EventArgsArray & EventArgsObject>>>;
+
+  interface: NiftyupFactoryInterface;
+
+  functions: {
+    create(
+      _owner: string,
+      _bits: BigNumberish,
+      overrides?: Overrides & { from?: string | Promise<string> }
+    ): Promise<ContractTransaction>;
+
+    implementations(
+      arg0: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<[string]>;
+  };
+
+  create(
+    _owner: string,
+    _bits: BigNumberish,
+    overrides?: Overrides & { from?: string | Promise<string> }
+  ): Promise<ContractTransaction>;
+
+  implementations(
+    arg0: BigNumberish,
+    overrides?: CallOverrides
+  ): Promise<string>;
+
+  callStatic: {
+    create(
+      _owner: string,
+      _bits: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<string>;
+
+    implementations(
+      arg0: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<string>;
+  };
+
+  filters: {
+    "CreatedImplementationContract(uint256,address)"(
+      bits?: BigNumberish | null,
+      implementation?: string | null
+    ): TypedEventFilter<
+      [BigNumber, string],
+      { bits: BigNumber; implementation: string }
+    >;
+
+    CreatedImplementationContract(
+      bits?: BigNumberish | null,
+      implementation?: string | null
+    ): TypedEventFilter<
+      [BigNumber, string],
+      { bits: BigNumber; implementation: string }
+    >;
+
+    "CreatedNFTContract(address,address,address)"(
+      creator?: string | null,
+      owner?: string | null,
+      nft?: string | null
+    ): TypedEventFilter<
+      [string, string, string],
+      { creator: string; owner: string; nft: string }
+    >;
+
+    CreatedNFTContract(
+      creator?: string | null,
+      owner?: string | null,
+      nft?: string | null
+    ): TypedEventFilter<
+      [string, string, string],
+      { creator: string; owner: string; nft: string }
+    >;
+  };
+
+  estimateGas: {
+    create(
+      _owner: string,
+      _bits: BigNumberish,
+      overrides?: Overrides & { from?: string | Promise<string> }
+    ): Promise<BigNumber>;
+
+    implementations(
+      arg0: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    create(
+      _owner: string,
+      _bits: BigNumberish,
+      overrides?: Overrides & { from?: string | Promise<string> }
+    ): Promise<PopulatedTransaction>;
+
+    implementations(
+      arg0: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+  };
+}
diff --git a/src/gen/typechain/NiftyupNFT.d.ts b/src/gen/typechain/NiftyupNFT.d.ts
index de4769c..104dfe9 100644
--- a/src/gen/typechain/NiftyupNFT.d.ts
+++ b/src/gen/typechain/NiftyupNFT.d.ts
@@ -21,6 +21,7 @@ import type { TypedEventFilter, TypedEvent, TypedListener } from "./common";
 
 interface NiftyupNFTInterface extends ethers.utils.Interface {
   functions: {
+    "IDS_BITS_SIZE()": FunctionFragment;
     "balanceOf(address,uint256)": FunctionFragment;
     "balanceOfBatch(address[],uint256[])": FunctionFragment;
     "batchBurn(uint256[],uint256[])": FunctionFragment;
@@ -28,6 +29,7 @@ interface NiftyupNFTInterface extends ethers.utils.Interface {
     "burn(uint256,uint256)": FunctionFragment;
     "getIDBinIndex(uint256)": FunctionFragment;
     "getValueInBin(uint256,uint256)": FunctionFragment;
+    "initialize(address)": FunctionFragment;
     "isApprovedForAll(address,address)": FunctionFragment;
     "mint(address,uint256,uint256,bytes)": FunctionFragment;
     "owner()": FunctionFragment;
@@ -41,6 +43,10 @@ interface NiftyupNFTInterface extends ethers.utils.Interface {
     "uri(uint256)": FunctionFragment;
   };
 
+  encodeFunctionData(
+    functionFragment: "IDS_BITS_SIZE",
+    values?: undefined
+  ): string;
   encodeFunctionData(
     functionFragment: "balanceOf",
     values: [string, BigNumberish]
@@ -69,6 +75,7 @@ interface NiftyupNFTInterface extends ethers.utils.Interface {
     functionFragment: "getValueInBin",
     values: [BigNumberish, BigNumberish]
   ): string;
+  encodeFunctionData(functionFragment: "initialize", values: [string]): string;
   encodeFunctionData(
     functionFragment: "isApprovedForAll",
     values: [string, string]
@@ -108,6 +115,10 @@ interface NiftyupNFTInterface extends ethers.utils.Interface {
   ): string;
   encodeFunctionData(functionFragment: "uri", values: [BigNumberish]): string;
 
+  decodeFunctionResult(
+    functionFragment: "IDS_BITS_SIZE",
+    data: BytesLike
+  ): Result;
   decodeFunctionResult(functionFragment: "balanceOf", data: BytesLike): Result;
   decodeFunctionResult(
     functionFragment: "balanceOfBatch",
@@ -124,6 +135,7 @@ interface NiftyupNFTInterface extends ethers.utils.Interface {
     functionFragment: "getValueInBin",
     data: BytesLike
   ): Result;
+  decodeFunctionResult(functionFragment: "initialize", data: BytesLike): Result;
   decodeFunctionResult(
     functionFragment: "isApprovedForAll",
     data: BytesLike
@@ -255,6 +267,8 @@ export class NiftyupNFT extends BaseContract {
   interface: NiftyupNFTInterface;
 
   functions: {
+    IDS_BITS_SIZE(overrides?: CallOverrides): Promise<[BigNumber]>;
+
     balanceOf(
       _owner: string,
       _id: BigNumberish,
@@ -298,6 +312,11 @@ export class NiftyupNFT extends BaseContract {
       overrides?: CallOverrides
     ): Promise<[BigNumber]>;
 
+    initialize(
+      _owner: string,
+      overrides?: Overrides & { from?: string | Promise<string> }
+    ): Promise<ContractTransaction>;
+
     isApprovedForAll(
       _owner: string,
       _operator: string,
@@ -360,6 +379,8 @@ export class NiftyupNFT extends BaseContract {
     uri(_id: BigNumberish, overrides?: CallOverrides): Promise<[string]>;
   };
 
+  IDS_BITS_SIZE(overrides?: CallOverrides): Promise<BigNumber>;
+
   balanceOf(
     _owner: string,
     _id: BigNumberish,
@@ -403,6 +424,11 @@ export class NiftyupNFT extends BaseContract {
     overrides?: CallOverrides
   ): Promise<BigNumber>;
 
+  initialize(
+    _owner: string,
+    overrides?: Overrides & { from?: string | Promise<string> }
+  ): Promise<ContractTransaction>;
+
   isApprovedForAll(
     _owner: string,
     _operator: string,
@@ -465,6 +491,8 @@ export class NiftyupNFT extends BaseContract {
   uri(_id: BigNumberish, overrides?: CallOverrides): Promise<string>;
 
   callStatic: {
+    IDS_BITS_SIZE(overrides?: CallOverrides): Promise<BigNumber>;
+
     balanceOf(
       _owner: string,
       _id: BigNumberish,
@@ -508,6 +536,8 @@ export class NiftyupNFT extends BaseContract {
       overrides?: CallOverrides
     ): Promise<BigNumber>;
 
+    initialize(_owner: string, overrides?: CallOverrides): Promise<void>;
+
     isApprovedForAll(
       _owner: string,
       _operator: string,
@@ -683,6 +713,8 @@ export class NiftyupNFT extends BaseContract {
   };
 
   estimateGas: {
+    IDS_BITS_SIZE(overrides?: CallOverrides): Promise<BigNumber>;
+
     balanceOf(
       _owner: string,
       _id: BigNumberish,
@@ -726,6 +758,11 @@ export class NiftyupNFT extends BaseContract {
       overrides?: CallOverrides
     ): Promise<BigNumber>;
 
+    initialize(
+      _owner: string,
+      overrides?: Overrides & { from?: string | Promise<string> }
+    ): Promise<BigNumber>;
+
     isApprovedForAll(
       _owner: string,
       _operator: string,
@@ -789,6 +826,8 @@ export class NiftyupNFT extends BaseContract {
   };
 
   populateTransaction: {
+    IDS_BITS_SIZE(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
     balanceOf(
       _owner: string,
       _id: BigNumberish,
@@ -832,6 +871,11 @@ export class NiftyupNFT extends BaseContract {
       overrides?: CallOverrides
     ): Promise<PopulatedTransaction>;
 
+    initialize(
+      _owner: string,
+      overrides?: Overrides & { from?: string | Promise<string> }
+    ): Promise<PopulatedTransaction>;
+
     isApprovedForAll(
       _owner: string,
       _operator: string,
diff --git a/src/gen/typechain/Ownable.d.ts b/src/gen/typechain/Ownable.d.ts
new file mode 100644
index 0000000..265dc3e
--- /dev/null
+++ b/src/gen/typechain/Ownable.d.ts
@@ -0,0 +1,181 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import {
+  ethers,
+  EventFilter,
+  Signer,
+  BigNumber,
+  BigNumberish,
+  PopulatedTransaction,
+  BaseContract,
+  ContractTransaction,
+  Overrides,
+  CallOverrides,
+} from "ethers";
+import { BytesLike } from "@ethersproject/bytes";
+import { Listener, Provider } from "@ethersproject/providers";
+import { FunctionFragment, EventFragment, Result } from "@ethersproject/abi";
+import type { TypedEventFilter, TypedEvent, TypedListener } from "./common";
+
+interface OwnableInterface extends ethers.utils.Interface {
+  functions: {
+    "owner()": FunctionFragment;
+    "renounceOwnership()": FunctionFragment;
+    "transferOwnership(address)": FunctionFragment;
+  };
+
+  encodeFunctionData(functionFragment: "owner", values?: undefined): string;
+  encodeFunctionData(
+    functionFragment: "renounceOwnership",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "transferOwnership",
+    values: [string]
+  ): string;
+
+  decodeFunctionResult(functionFragment: "owner", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "renounceOwnership",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "transferOwnership",
+    data: BytesLike
+  ): Result;
+
+  events: {
+    "OwnershipTransferred(address,address)": EventFragment;
+  };
+
+  getEvent(nameOrSignatureOrTopic: "OwnershipTransferred"): EventFragment;
+}
+
+export type OwnershipTransferredEvent = TypedEvent<
+  [string, string] & { previousOwner: string; newOwner: string }
+>;
+
+export class Ownable extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  listeners<EventArgsArray extends Array<any>, EventArgsObject>(
+    eventFilter?: TypedEventFilter<EventArgsArray, EventArgsObject>
+  ): Array<TypedListener<EventArgsArray, EventArgsObject>>;
+  off<EventArgsArray extends Array<any>, EventArgsObject>(
+    eventFilter: TypedEventFilter<EventArgsArray, EventArgsObject>,
+    listener: TypedListener<EventArgsArray, EventArgsObject>
+  ): this;
+  on<EventArgsArray extends Array<any>, EventArgsObject>(
+    eventFilter: TypedEventFilter<EventArgsArray, EventArgsObject>,
+    listener: TypedListener<EventArgsArray, EventArgsObject>
+  ): this;
+  once<EventArgsArray extends Array<any>, EventArgsObject>(
+    eventFilter: TypedEventFilter<EventArgsArray, EventArgsObject>,
+    listener: TypedListener<EventArgsArray, EventArgsObject>
+  ): this;
+  removeListener<EventArgsArray extends Array<any>, EventArgsObject>(
+    eventFilter: TypedEventFilter<EventArgsArray, EventArgsObject>,
+    listener: TypedListener<EventArgsArray, EventArgsObject>
+  ): this;
+  removeAllListeners<EventArgsArray extends Array<any>, EventArgsObject>(
+    eventFilter: TypedEventFilter<EventArgsArray, EventArgsObject>
+  ): this;
+
+  listeners(eventName?: string): Array<Listener>;
+  off(eventName: string, listener: Listener): this;
+  on(eventName: string, listener: Listener): this;
+  once(eventName: string, listener: Listener): this;
+  removeListener(eventName: string, listener: Listener): this;
+  removeAllListeners(eventName?: string): this;
+
+  queryFilter<EventArgsArray extends Array<any>, EventArgsObject>(
+    event: TypedEventFilter<EventArgsArray, EventArgsObject>,
+    fromBlockOrBlockhash?: string | number | undefined,
+    toBlock?: string | number | undefined
+  ): Promise<Array<TypedEvent<EventArgsArray & EventArgsObject>>>;
+
+  interface: OwnableInterface;
+
+  functions: {
+    owner(overrides?: CallOverrides): Promise<[string]>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: string | Promise<string> }
+    ): Promise<ContractTransaction>;
+
+    transferOwnership(
+      newOwner: string,
+      overrides?: Overrides & { from?: string | Promise<string> }
+    ): Promise<ContractTransaction>;
+  };
+
+  owner(overrides?: CallOverrides): Promise<string>;
+
+  renounceOwnership(
+    overrides?: Overrides & { from?: string | Promise<string> }
+  ): Promise<ContractTransaction>;
+
+  transferOwnership(
+    newOwner: string,
+    overrides?: Overrides & { from?: string | Promise<string> }
+  ): Promise<ContractTransaction>;
+
+  callStatic: {
+    owner(overrides?: CallOverrides): Promise<string>;
+
+    renounceOwnership(overrides?: CallOverrides): Promise<void>;
+
+    transferOwnership(
+      newOwner: string,
+      overrides?: CallOverrides
+    ): Promise<void>;
+  };
+
+  filters: {
+    "OwnershipTransferred(address,address)"(
+      previousOwner?: string | null,
+      newOwner?: string | null
+    ): TypedEventFilter<
+      [string, string],
+      { previousOwner: string; newOwner: string }
+    >;
+
+    OwnershipTransferred(
+      previousOwner?: string | null,
+      newOwner?: string | null
+    ): TypedEventFilter<
+      [string, string],
+      { previousOwner: string; newOwner: string }
+    >;
+  };
+
+  estimateGas: {
+    owner(overrides?: CallOverrides): Promise<BigNumber>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: string | Promise<string> }
+    ): Promise<BigNumber>;
+
+    transferOwnership(
+      newOwner: string,
+      overrides?: Overrides & { from?: string | Promise<string> }
+    ): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    owner(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: string | Promise<string> }
+    ): Promise<PopulatedTransaction>;
+
+    transferOwnership(
+      newOwner: string,
+      overrides?: Overrides & { from?: string | Promise<string> }
+    ): Promise<PopulatedTransaction>;
+  };
+}
diff --git a/src/gen/typechain/factories/NiftyupFactory__factory.ts b/src/gen/typechain/factories/NiftyupFactory__factory.ts
new file mode 100644
index 0000000..f5c9a24
--- /dev/null
+++ b/src/gen/typechain/factories/NiftyupFactory__factory.ts
@@ -0,0 +1,143 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import { Signer, utils, Contract, ContractFactory, Overrides } from "ethers";
+import { Provider, TransactionRequest } from "@ethersproject/providers";
+import type {
+  NiftyupFactory,
+  NiftyupFactoryInterface,
+} from "../NiftyupFactory";
+
+const _abi = [
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "uint256",
+        name: "bits",
+        type: "uint256",
+      },
+      {
+        indexed: true,
+        internalType: "address",
+        name: "implementation",
+        type: "address",
+      },
+    ],
+    name: "CreatedImplementationContract",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "address",
+        name: "creator",
+        type: "address",
+      },
+      {
+        indexed: true,
+        internalType: "address",
+        name: "owner",
+        type: "address",
+      },
+      {
+        indexed: true,
+        internalType: "address",
+        name: "nft",
+        type: "address",
+      },
+    ],
+    name: "CreatedNFTContract",
+    type: "event",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "_owner",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "_bits",
+        type: "uint256",
+      },
+    ],
+    name: "create",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    name: "implementations",
+    outputs: [
+      {
+        internalType: "contract NiftyupNFT",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+];
+
+const _bytecode =
+  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+
+export class NiftyupFactory__factory extends ContractFactory {
+  constructor(
+    ...args: [signer: Signer] | ConstructorParameters<typeof ContractFactory>
+  ) {
+    if (args.length === 1) {
+      super(_abi, _bytecode, args[0]);
+    } else {
+      super(...args);
+    }
+  }
+
+  deploy(
+    overrides?: Overrides & { from?: string | Promise<string> }
+  ): Promise<NiftyupFactory> {
+    return super.deploy(overrides || {}) as Promise<NiftyupFactory>;
+  }
+  getDeployTransaction(
+    overrides?: Overrides & { from?: string | Promise<string> }
+  ): TransactionRequest {
+    return super.getDeployTransaction(overrides || {});
+  }
+  attach(address: string): NiftyupFactory {
+    return super.attach(address) as NiftyupFactory;
+  }
+  connect(signer: Signer): NiftyupFactory__factory {
+    return super.connect(signer) as NiftyupFactory__factory;
+  }
+  static readonly bytecode = _bytecode;
+  static readonly abi = _abi;
+  static createInterface(): NiftyupFactoryInterface {
+    return new utils.Interface(_abi) as NiftyupFactoryInterface;
+  }
+  static connect(
+    address: string,
+    signerOrProvider: Signer | Provider
+  ): NiftyupFactory {
+    return new Contract(address, _abi, signerOrProvider) as NiftyupFactory;
+  }
+}
diff --git a/src/gen/typechain/factories/NiftyupNFT__factory.ts b/src/gen/typechain/factories/NiftyupNFT__factory.ts
index 1bf708f..82d2f26 100644
--- a/src/gen/typechain/factories/NiftyupNFT__factory.ts
+++ b/src/gen/typechain/factories/NiftyupNFT__factory.ts
@@ -2,11 +2,29 @@
 /* tslint:disable */
 /* eslint-disable */
 
-import { Signer, utils, Contract, ContractFactory, Overrides } from "ethers";
+import {
+  Signer,
+  utils,
+  BigNumberish,
+  Contract,
+  ContractFactory,
+  Overrides,
+} from "ethers";
 import { Provider, TransactionRequest } from "@ethersproject/providers";
 import type { NiftyupNFT, NiftyupNFTInterface } from "../NiftyupNFT";
 
 const _abi = [
+  {
+    inputs: [
+      {
+        internalType: "uint256",
+        name: "_bits",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "constructor",
+  },
   {
     anonymous: false,
     inputs: [
@@ -148,6 +166,19 @@ const _abi = [
     stateMutability: "nonpayable",
     type: "fallback",
   },
+  {
+    inputs: [],
+    name: "IDS_BITS_SIZE",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
   {
     inputs: [
       {
@@ -281,7 +312,7 @@ const _abi = [
         type: "uint256",
       },
     ],
-    stateMutability: "pure",
+    stateMutability: "view",
     type: "function",
   },
   {
@@ -305,7 +336,20 @@ const _abi = [
         type: "uint256",
       },
     ],
-    stateMutability: "pure",
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "_owner",
+        type: "address",
+      },
+    ],
+    name: "initialize",
+    outputs: [],
+    stateMutability: "nonpayable",
     type: "function",
   },
   {
@@ -531,22 +575,30 @@ const _abi = [
 ];
 
 const _bytecode =
-  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
 export class NiftyupNFT__factory extends ContractFactory {
-  constructor(signer?: Signer) {
-    super(_abi, _bytecode, signer);
+  constructor(
+    ...args: [signer: Signer] | ConstructorParameters<typeof ContractFactory>
+  ) {
+    if (args.length === 1) {
+      super(_abi, _bytecode, args[0]);
+    } else {
+      super(...args);
+    }
   }
 
   deploy(
+    _bits: BigNumberish,
     overrides?: Overrides & { from?: string | Promise<string> }
   ): Promise<NiftyupNFT> {
-    return super.deploy(overrides || {}) as Promise<NiftyupNFT>;
+    return super.deploy(_bits, overrides || {}) as Promise<NiftyupNFT>;
   }
   getDeployTransaction(
+    _bits: BigNumberish,
     overrides?: Overrides & { from?: string | Promise<string> }
   ): TransactionRequest {
-    return super.getDeployTransaction(overrides || {});
+    return super.getDeployTransaction(_bits, overrides || {});
   }
   attach(address: string): NiftyupNFT {
     return super.attach(address) as NiftyupNFT;
diff --git a/src/gen/typechain/factories/Ownable__factory.ts b/src/gen/typechain/factories/Ownable__factory.ts
new file mode 100644
index 0000000..df0453a
--- /dev/null
+++ b/src/gen/typechain/factories/Ownable__factory.ts
@@ -0,0 +1,75 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import { Contract, Signer, utils } from "ethers";
+import { Provider } from "@ethersproject/providers";
+import type { Ownable, OwnableInterface } from "../Ownable";
+
+const _abi = [
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "address",
+        name: "previousOwner",
+        type: "address",
+      },
+      {
+        indexed: true,
+        internalType: "address",
+        name: "newOwner",
+        type: "address",
+      },
+    ],
+    name: "OwnershipTransferred",
+    type: "event",
+  },
+  {
+    inputs: [],
+    name: "owner",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "renounceOwnership",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "newOwner",
+        type: "address",
+      },
+    ],
+    name: "transferOwnership",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+];
+
+export class Ownable__factory {
+  static readonly abi = _abi;
+  static createInterface(): OwnableInterface {
+    return new utils.Interface(_abi) as OwnableInterface;
+  }
+  static connect(
+    address: string,
+    signerOrProvider: Signer | Provider
+  ): Ownable {
+    return new Contract(address, _abi, signerOrProvider) as Ownable;
+  }
+}
diff --git a/src/gen/typechain/index.ts b/src/gen/typechain/index.ts
index 584b2d0..5900657 100644
--- a/src/gen/typechain/index.ts
+++ b/src/gen/typechain/index.ts
@@ -1,6 +1,10 @@
 /* Autogenerated file. Do not edit manually. */
 /* tslint:disable */
 /* eslint-disable */
+export type { NiftyupFactory } from "./NiftyupFactory";
 export type { NiftyupNFT } from "./NiftyupNFT";
+export type { Ownable } from "./Ownable";
 
+export { NiftyupFactory__factory } from "./factories/NiftyupFactory__factory";
 export { NiftyupNFT__factory } from "./factories/NiftyupNFT__factory";
+export { Ownable__factory } from "./factories/Ownable__factory";
diff --git a/src/package.json b/src/package.json
index 93f7fac..3de1f12 100644
--- a/src/package.json
+++ b/src/package.json
@@ -12,9 +12,8 @@
   },
   "author": "",
   "dependencies": {
-    "@0xsequence/erc-1155": "^3.0.6",
+    "@0xsequence/erc-1155": "https://gitpkg.now.sh/0xsequence/erc-1155/src?a664bd16734c53f71fd919a640dd36bb37e3500d",
     "@openzeppelin/contracts": "^3.4.2"
   },
-  "devDependencies": {
-  }
+  "devDependencies": {}
 }
diff --git a/tests/niftyup.spec.ts b/tests/niftyup.spec.ts
new file mode 100644
index 0000000..c03ddc3
--- /dev/null
+++ b/tests/niftyup.spec.ts
@@ -0,0 +1,252 @@
+import { ethers } from "hardhat"
+import { SignerWithAddress } from "@nomiclabs/hardhat-ethers/signers"
+import { Contract } from "@ethersproject/contracts"
+import { TransactionResponse } from "@ethersproject/abstract-provider"
+import { expect } from "chai"
+
+async function nftFromTx(tx: Promise<TransactionResponse> | TransactionResponse) {
+  const log = (await (await tx).wait()).logs.find((l) => l.topics.length === 4)
+  const addr = ethers.utils.defaultAbiCoder.decode(["address"], log?.topics[3] ?? "")[0]
+  const Nft = await ethers.getContractFactory("NiftyupNFT")
+  return Nft.attach(addr)
+}
+
+const VALID_BITS = [1, 2, 4, 8, 16, 32, 64, 128]
+const INVALID_BITS = new Array(555).fill(0).map((_, i) => i).filter((v) => !VALID_BITS.includes(v))
+
+describe("NiftyupNFT", function () {
+  let factory: Contract
+  let signers: SignerWithAddress[]
+
+  before(async () => {
+    const Factory = await ethers.getContractFactory("NiftyupFactory")
+    factory = await Factory.deploy()
+    signers = await ethers.getSigners()
+  })
+
+  describe("Create new NFT", () => {
+    let nft: Contract
+
+    VALID_BITS.map((v) => {
+      context(`With ${v} bits`, () => {
+        describe('implementation contracts', () => {
+          beforeEach(async () => {
+            const Factory = await ethers.getContractFactory("NiftyupFactory")
+            factory = await Factory.deploy()
+          })
+    
+          it('Should start with no implementation', async () => {
+            const addr = await factory.implementations(v)
+            expect(addr).to.equal(ethers.constants.AddressZero)
+          })
+    
+          it('Should create implementation after first deployment', async () => {
+            await factory.create(signers[0].address, v)
+            const addr = await factory.implementations(v)
+            expect(addr).to.not.equal(ethers.constants.AddressZero)
+          })
+    
+          it('Should use same implementation on second deployment', async () => {
+            await factory.create(signers[0].address, v)
+            const addr1 = await factory.implementations(v)
+            await factory.create(signers[0].address, v)
+            const addr2 = await factory.implementations(v)
+            expect(addr1).to.equal(addr2)
+          })
+        })
+
+        beforeEach(async () => {
+          nft = await nftFromTx(factory.create(signers[0].address, 32))
+        })
+    
+        it("Must have code", async () => {
+          expect(await ethers.provider.getCode(nft.address)).to.not.equal("0x")
+        })
+    
+        it("Must have an owner", async () => {
+          expect(await nft.owner()).to.equal(signers[0].address)
+        })
+    
+        it("Must fail to re-initialize", async () => {
+          const tx = nft.initialize(signers[1].address)
+          await expect(tx).to.be.reverted
+        })
+    
+        describe("ownable", () => {
+          it("Must transfer ownership to a different owner", async () => {
+            await nft.transferOwnership(signers[1].address)
+            expect(await nft.owner()).to.equal(signers[1].address)
+          })
+    
+          it("Must renonunce ownership", async () => {
+            await nft.renounceOwnership()
+            expect(await nft.owner()).to.equal(ethers.constants.AddressZero)
+          })
+    
+          it("Must fail to transfer ownership if not owner", async () => {
+            const tx = nft.connect(signers[1]).transferOwnership(signers[1].address)
+            await expect(tx).to.be.reverted
+          })
+    
+          it("Must fail to transfer ownership to address(0)", async () => {
+            const tx = nft.transferOwnership(ethers.constants.AddressZero)
+            await expect(tx).to.be.reverted
+          })
+        })
+    
+        describe("ERC-165", () => {
+          it("Must return false for 0xffffffff", async () => {
+            expect(await nft.supportsInterface("0xffffffff")).equal(false)
+          })
+    
+          it("Must return true for 0x01ffc9a7 (ERC-165)", async () => {
+            expect(await nft.supportsInterface("0x01ffc9a7")).equal(true)
+          })
+        })
+    
+        describe("mint", () => {
+          it("Must mint single token with ID 0", async () => {
+            await nft.mint(signers[1].address, 0, 1, "0x")
+            expect(await nft.balanceOf(signers[1].address, 0)).to.equal(1)
+          })
+    
+          it("Must mint single token", async () => {
+            await nft.mint(signers[1].address, 2, 1, "0x")
+            expect(await nft.balanceOf(signers[1].address, 2)).to.equal(1)
+          })
+      
+          it("Must mint many tokens", async () => {
+            await nft.mint(signers[2].address, 3, 5, ethers.utils.randomBytes(512))
+            expect(await nft.balanceOf(signers[2].address, 3)).to.equal(5)
+          })
+      
+          it("Must fail to mint if not owner", async () => {
+            const tx = nft.connect(signers[1]).mint(signers[2].address, 2, 3, "0x")
+            await expect(tx).to.be.reverted
+          })
+    
+          it("Must fail to mint if recipient rejects nfts", async () => {
+            const tx = nft.mint(nft.address, 2, 3, "0x")
+            await expect(tx).to.be.reverted
+          })
+        })
+    
+        describe("batchMint", () => {
+          it("Must mint batch tokens", async () => {
+            await nft.batchMint(signers[1].address, [2, 3, 4], [1, 2, 3], "0x")
+            expect(await nft.balanceOf(signers[1].address, 2)).to.equal(1)
+            expect(await nft.balanceOf(signers[1].address, 3)).to.equal(2)
+            expect(await nft.balanceOf(signers[1].address, 4)).to.equal(3)
+          })
+      
+          it("Must fail to mint if not owner", async () => {
+            const tx = nft.connect(signers[1]).batchMint(signers[1].address, [2, 3, 4], [1, 2, 3], "0x")
+            await expect(tx).to.be.reverted
+          })
+    
+          it("Must fail to mint if recipient rejects nfts", async () => {
+            const tx = nft.batchMint(nft.address, [2, 3, 4], [1, 2, 3], "0x")
+            await expect(tx).to.be.reverted
+          })
+        })
+    
+        describe("burn", () => {
+          it("Must burn tokens", async () => {
+            await nft.mint(signers[1].address, 2, 1, "0x")
+            await nft.connect(signers[1]).burn(2, 1)
+            expect(await nft.balanceOf(signers[1].address, 2)).to.equal(0)
+          })
+    
+          it("Must burn many tokens", async () => {
+            await nft.mint(signers[1].address, 2, 5, "0x")
+            await nft.connect(signers[1]).burn(2, 4)
+            expect(await nft.balanceOf(signers[1].address, 2)).to.equal(1)
+          })
+    
+          it("Must fail to burn if burner has no tokens", async () => {
+            const tx = nft.connect(signers[1]).burn(2, 1)
+            await expect(tx).to.be.reverted
+          })
+    
+          it("Must fail to burn if burner has not enough tokens", async () => {
+            await nft.mint(signers[1].address, 2, 5, "0x")
+            const tx = nft.connect(signers[1]).burn(2, 6)
+            await expect(tx).to.be.reverted
+          })
+        })
+    
+        describe("batchBurn", () => {
+          it("Must burn tokens", async () => {
+            await nft.mint(signers[1].address, 0, 1, "0x")
+            await nft.mint(signers[1].address, 3, 4, "0x")
+            await nft.mint(signers[1].address, 4, 5, "0x")
+    
+            await nft.connect(signers[1]).batchBurn([0, 3, 4], [1, 3, 5])
+    
+            expect(await nft.balanceOf(signers[1].address, 0)).to.equal(0)
+            expect(await nft.balanceOf(signers[1].address, 3)).to.equal(1)
+            expect(await nft.balanceOf(signers[1].address, 4)).to.equal(0)
+          })
+    
+          it("Must fail to burn if burner has no tokens", async () => {
+            await nft.mint(signers[1].address, 0, 1, "0x")
+            await nft.mint(signers[1].address, 3, 4, "0x")
+    
+            const tx = nft.connect(signers[1]).batchBurn([0, 3, 4], [1, 3, 5])
+    
+            await expect(tx).to.be.reverted
+          })
+    
+          it("Must fail to burn if burner has not enough tokens", async () => {
+            await nft.mint(signers[1].address, 0, 1, "0x")
+            await nft.mint(signers[1].address, 3, 2, "0x")
+    
+            const tx = nft.connect(signers[1]).batchBurn([0, 3], [1, 3])
+    
+            await expect(tx).to.be.reverted
+          })
+        })
+    
+        describe("metadata URI", () => {
+          it("Must initially return empty URI", async () => {
+            expect(await nft.uri(1)).to.equal("1.json")
+          })
+    
+          it("Must return URI with defined prefix", async () => {
+            await nft.setBaseMetadataURI("ipfs://my-ipfs-hash-hehe/")
+            expect(await nft.uri(1)).to.equal("ipfs://my-ipfs-hash-hehe/1.json")
+          })
+    
+          it("Must return URI with long prefix", async () => {
+            const prefix = `${ethers.utils.hexlify(ethers.utils.randomBytes(2048))}/`
+            const id = ethers.BigNumber.from(ethers.utils.randomBytes(32))
+            await nft.setBaseMetadataURI(prefix)
+            expect(await nft.uri(id)).to.equal(`${prefix}${id.toString()}.json`)
+          })
+    
+          it("Must change prefix twice", async () => {
+            await nft.setBaseMetadataURI("ipfs://my-ipfs-hash-hehe/")
+            expect(await nft.uri(0)).to.equal("ipfs://my-ipfs-hash-hehe/0.json")
+    
+            await nft.setBaseMetadataURI("https://sequence.app/")
+            expect(await nft.uri(0)).to.equal("https://sequence.app/0.json")
+          })
+    
+          it("Must fail to change prefix if not owner", async () => {
+            const tx = nft.connect(signers[1]).setBaseMetadataURI("https://sequence.app/")
+            await expect(tx).to.be.reverted
+          })
+        })
+      })
+    })
+
+    describe('Reject invalid bits values', () => {
+      INVALID_BITS.map((v) => {
+        it(`Should reject packed with ${v} bits`, async () => {
+          const tx = factory.create(signers[0].address, v)
+          await expect(tx).to.be.reverted
+        })
+      })
+    })
+  })
+})
diff --git a/yarn.lock b/yarn.lock
index 3459876..a038077 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,15 +2,14 @@
 # yarn lockfile v1
 
 
-"@0xsequence/erc-1155@^3.0.6":
-  version "3.0.6"
-  resolved "https://registry.yarnpkg.com/@0xsequence/erc-1155/-/erc-1155-3.0.6.tgz#10f627d5550b470aa8f0e39163ac9d7a58880596"
-  integrity sha512-W4TdV9n4L/zDo8R7Chaa9rLsOknOIBoqtBsxC6n3gKuTXgDCI5KZglhK/yP1DWFG9St85wzmXPelfC6pX9vc3g==
+"@0xsequence/erc-1155@https://gitpkg.now.sh/0xsequence/erc-1155/src?a664bd16734c53f71fd919a640dd36bb37e3500d":
+  version "4.0.0"
+  resolved "https://gitpkg.now.sh/0xsequence/erc-1155/src?a664bd16734c53f71fd919a640dd36bb37e3500d#4feee014476afc68cf8501e5d7e6f2f4bcc39e09"
 
 "@babel/code-frame@^7.0.0":
-  version "7.14.5"
-  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.14.5.tgz#23b08d740e83f49c5e59945fbf1b43e80bbf4edb"
-  integrity sha512-9pzDqyc6OLDaqe+zbACgFkb6fKMNG6CObKpnYXChRsvYGyEdc7CA2BaqeOM+vOtCS5ndmJicPJhKAwYRI6UfFw==
+  version "7.15.8"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.15.8.tgz#45990c47adadb00c03677baa89221f7cc23d2503"
+  integrity sha512-2IAnmn8zbvC/jKYhq5Ki9I+DwjlrtMPUCH/CpHvqI4dNnlwHwsxoIhlc8WcYY5LSYknXQtAlFYuHfqAFCvQ4Wg==
   dependencies:
     "@babel/highlight" "^7.14.5"
 
@@ -33,10 +32,10 @@
   resolved "https://registry.yarnpkg.com/@cspotcode/source-map-consumer/-/source-map-consumer-0.8.0.tgz#33bf4b7b39c178821606f669bbc447a6a629786b"
   integrity sha512-41qniHzTU8yAGbCp04ohlmSrZf8bkf/iJsl3V0dRGsQN/5GFfx+LbCSsCpp2gqrqjTVg/K6O8ycoV35JIwAzAg==
 
-"@cspotcode/source-map-support@0.6.1":
-  version "0.6.1"
-  resolved "https://registry.yarnpkg.com/@cspotcode/source-map-support/-/source-map-support-0.6.1.tgz#118511f316e2e87ee4294761868e254d3da47960"
-  integrity sha512-DX3Z+T5dt1ockmPdobJS/FAsQPW4V4SrWEhD2iYQT2Cb2tQsiMnYxrcUH9By/Z3B+v0S5LMBkQtV/XOBbpLEOg==
+"@cspotcode/source-map-support@0.7.0":
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/@cspotcode/source-map-support/-/source-map-support-0.7.0.tgz#4789840aa859e46d2f3173727ab707c66bf344f5"
+  integrity sha512-X4xqRHqN8ACt2aHVe51OxeA2HjbcL4MqFqXkrmQszJ1NOUuUu5u6Vqx/0lZSVNku7velL5FC/s5uEAj1lsBMhA==
   dependencies:
     "@cspotcode/source-map-consumer" "0.8.0"
 
@@ -109,10 +108,10 @@
     patch-package "^6.2.2"
     postinstall-postinstall "^2.1.0"
 
-"@ethereumjs/block@^3.4.0", "@ethereumjs/block@^3.5.0":
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/@ethereumjs/block/-/block-3.5.0.tgz#31cfa49503010d504c99e2e043560efa1355a8f4"
-  integrity sha512-402pSG7a+NqtMDuj3OfDlQFZ2lZgiCS2dsnJba6/cMSI4+r/DTXgKd/ugP5B5iVAqhwtBLrgp3INDm6ua+HFkw==
+"@ethereumjs/block@^3.4.0", "@ethereumjs/block@^3.5.0", "@ethereumjs/block@^3.5.1":
+  version "3.5.1"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/block/-/block-3.5.1.tgz#59737d393503249aa750c37dfc83896234f4e175"
+  integrity sha512-MoY9bHKABOBK6BW0v1N1Oc0Cve4x/giX67M3TtrVBUsKQTj2eznLGKpydoitxWSZ+WgKKSVhfRMzbCGRwk7T5w==
   dependencies:
     "@ethereumjs/common" "^2.5.0"
     "@ethereumjs/tx" "^3.3.1"
@@ -120,11 +119,11 @@
     merkle-patricia-tree "^4.2.1"
 
 "@ethereumjs/blockchain@^5.4.0", "@ethereumjs/blockchain@^5.4.1":
-  version "5.4.1"
-  resolved "https://registry.yarnpkg.com/@ethereumjs/blockchain/-/blockchain-5.4.1.tgz#4a7aa291ec3eeb41719a5b6b2cc25ff1c6c6a440"
-  integrity sha512-PVNgVG4W79FZ8HacpYQkNleFsjqUbHnAW61+QFUL9LfK6MKddB5TBHcw3sE4AoXToWGq/UFpuBaaq1G0VBxM0g==
+  version "5.4.2"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/blockchain/-/blockchain-5.4.2.tgz#5074e0a0157818762a5f5175ea0bd93c5455fe32"
+  integrity sha512-AOAAwz/lw2lciG9gf5wHi7M/qknraXXnLR66lYgbQ04qfyFC3ZE5x/5rLVm1Vu+kfJLlKrYZTmA0IbOkc7kvgw==
   dependencies:
-    "@ethereumjs/block" "^3.5.0"
+    "@ethereumjs/block" "^3.5.1"
     "@ethereumjs/common" "^2.5.0"
     "@ethereumjs/ethash" "^1.1.0"
     debug "^2.2.0"
@@ -134,7 +133,7 @@
     rlp "^2.2.4"
     semaphore-async-await "^1.5.1"
 
-"@ethereumjs/common@^2.4.0", "@ethereumjs/common@^2.5.0":
+"@ethereumjs/common@^2.3.0", "@ethereumjs/common@^2.4.0", "@ethereumjs/common@^2.5.0":
   version "2.5.0"
   resolved "https://registry.yarnpkg.com/@ethereumjs/common/-/common-2.5.0.tgz#ec61551b31bef7a69d1dc634d8932468866a4268"
   integrity sha512-DEHjW6e38o+JmB/NO3GZBpW4lpaiBpkFgXF6jLcJ6gETBYpEyaA5nTimsWBUJR3Vmtm/didUEbNjajskugZORg==
@@ -153,13 +152,13 @@
     ethereumjs-util "^7.1.1"
     miller-rabin "^4.0.0"
 
-"@ethereumjs/tx@^3.3.0", "@ethereumjs/tx@^3.3.1":
-  version "3.3.1"
-  resolved "https://registry.yarnpkg.com/@ethereumjs/tx/-/tx-3.3.1.tgz#83b6b1f9fe8182d6f2a1d7bff8213631629ab8a4"
-  integrity sha512-DXcBdW4upjU11FGlGBAMJw4jXAveL1Siu/8t9jfJ90dehOmpCyGTGWXr6tFzN8663Et8UFLcw3IdV7JJt88iZw==
+"@ethereumjs/tx@^3.2.1", "@ethereumjs/tx@^3.3.0", "@ethereumjs/tx@^3.3.1":
+  version "3.3.2"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/tx/-/tx-3.3.2.tgz#348d4624bf248aaab6c44fec2ae67265efe3db00"
+  integrity sha512-6AaJhwg4ucmwTvw/1qLaZUX5miWrwZ4nLOUsKyb/HtzS3BMw/CasKhdi1ims9mBKeK9sOJCH4qGKOBGyJCeeog==
   dependencies:
     "@ethereumjs/common" "^2.5.0"
-    ethereumjs-util "^7.1.1"
+    ethereumjs-util "^7.1.2"
 
 "@ethereumjs/vm@^5.5.2":
   version "5.5.3"
@@ -195,344 +194,360 @@
     "@ethersproject/properties" ">=5.0.0-beta.131"
     "@ethersproject/strings" ">=5.0.0-beta.130"
 
-"@ethersproject/abi@5.4.1", "@ethersproject/abi@^5.0.0-beta.146", "@ethersproject/abi@^5.0.1", "@ethersproject/abi@^5.1.2", "@ethersproject/abi@^5.4.0":
-  version "5.4.1"
-  resolved "https://registry.yarnpkg.com/@ethersproject/abi/-/abi-5.4.1.tgz#6ac28fafc9ef6f5a7a37e30356a2eb31fa05d39b"
-  integrity sha512-9mhbjUk76BiSluiiW4BaYyI58KSbDMMQpCLdsAR+RsT2GyATiNYxVv+pGWRrekmsIdY3I+hOqsYQSTkc8L/mcg==
-  dependencies:
-    "@ethersproject/address" "^5.4.0"
-    "@ethersproject/bignumber" "^5.4.0"
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/constants" "^5.4.0"
-    "@ethersproject/hash" "^5.4.0"
-    "@ethersproject/keccak256" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
-    "@ethersproject/properties" "^5.4.0"
-    "@ethersproject/strings" "^5.4.0"
-
-"@ethersproject/abstract-provider@5.4.1", "@ethersproject/abstract-provider@^5.4.0":
-  version "5.4.1"
-  resolved "https://registry.yarnpkg.com/@ethersproject/abstract-provider/-/abstract-provider-5.4.1.tgz#e404309a29f771bd4d28dbafadcaa184668c2a6e"
-  integrity sha512-3EedfKI3LVpjSKgAxoUaI+gB27frKsxzm+r21w9G60Ugk+3wVLQwhi1LsEJAKNV7WoZc8CIpNrATlL1QFABjtQ==
-  dependencies:
-    "@ethersproject/bignumber" "^5.4.0"
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
-    "@ethersproject/networks" "^5.4.0"
-    "@ethersproject/properties" "^5.4.0"
-    "@ethersproject/transactions" "^5.4.0"
-    "@ethersproject/web" "^5.4.0"
-
-"@ethersproject/abstract-signer@5.4.1", "@ethersproject/abstract-signer@^5.4.0":
-  version "5.4.1"
-  resolved "https://registry.yarnpkg.com/@ethersproject/abstract-signer/-/abstract-signer-5.4.1.tgz#e4e9abcf4dd4f1ba0db7dff9746a5f78f355ea81"
-  integrity sha512-SkkFL5HVq1k4/25dM+NWP9MILgohJCgGv5xT5AcRruGz4ILpfHeBtO/y6j+Z3UN/PAjDeb4P7E51Yh8wcGNLGA==
-  dependencies:
-    "@ethersproject/abstract-provider" "^5.4.0"
-    "@ethersproject/bignumber" "^5.4.0"
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
-    "@ethersproject/properties" "^5.4.0"
-
-"@ethersproject/address@5.4.0", "@ethersproject/address@>=5.0.0-beta.128", "@ethersproject/address@^5.0.2", "@ethersproject/address@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/address/-/address-5.4.0.tgz#ba2d00a0f8c4c0854933b963b9a3a9f6eb4a37a3"
-  integrity sha512-SD0VgOEkcACEG/C6xavlU1Hy3m5DGSXW3CUHkaaEHbAPPsgi0coP5oNPsxau8eTlZOk/bpa/hKeCNoK5IzVI2Q==
-  dependencies:
-    "@ethersproject/bignumber" "^5.4.0"
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/keccak256" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
-    "@ethersproject/rlp" "^5.4.0"
-
-"@ethersproject/base64@5.4.0", "@ethersproject/base64@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/base64/-/base64-5.4.0.tgz#7252bf65295954c9048c7ca5f43e5c86441b2a9a"
-  integrity sha512-CjQw6E17QDSSC5jiM9YpF7N1aSCHmYGMt9bWD8PWv6YPMxjsys2/Q8xLrROKI3IWJ7sFfZ8B3flKDTM5wlWuZQ==
-  dependencies:
-    "@ethersproject/bytes" "^5.4.0"
-
-"@ethersproject/basex@5.4.0", "@ethersproject/basex@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/basex/-/basex-5.4.0.tgz#0a2da0f4e76c504a94f2b21d3161ed9438c7f8a6"
-  integrity sha512-J07+QCVJ7np2bcpxydFVf/CuYo9mZ7T73Pe7KQY4c1lRlrixMeblauMxHXD0MPwFmUHZIILDNViVkykFBZylbg==
-  dependencies:
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/properties" "^5.4.0"
-
-"@ethersproject/bignumber@5.4.2", "@ethersproject/bignumber@>=5.0.0-beta.130", "@ethersproject/bignumber@^5.4.0":
-  version "5.4.2"
-  resolved "https://registry.yarnpkg.com/@ethersproject/bignumber/-/bignumber-5.4.2.tgz#44232e015ae4ce82ac034de549eb3583c71283d8"
-  integrity sha512-oIBDhsKy5bs7j36JlaTzFgNPaZjiNDOXsdSgSpXRucUl+UA6L/1YLlFeI3cPAoodcenzF4nxNPV13pcy7XbWjA==
+"@ethersproject/abi@5.0.7":
+  version "5.0.7"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abi/-/abi-5.0.7.tgz#79e52452bd3ca2956d0e1c964207a58ad1a0ee7b"
+  integrity sha512-Cqktk+hSIckwP/W8O47Eef60VwmoSC/L3lY0+dIBhQPCNn9E4V7rwmm2aFrNRRDJfFlGuZ1khkQUOc3oBX+niw==
+  dependencies:
+    "@ethersproject/address" "^5.0.4"
+    "@ethersproject/bignumber" "^5.0.7"
+    "@ethersproject/bytes" "^5.0.4"
+    "@ethersproject/constants" "^5.0.4"
+    "@ethersproject/hash" "^5.0.4"
+    "@ethersproject/keccak256" "^5.0.3"
+    "@ethersproject/logger" "^5.0.5"
+    "@ethersproject/properties" "^5.0.3"
+    "@ethersproject/strings" "^5.0.4"
+
+"@ethersproject/abi@5.5.0", "@ethersproject/abi@^5.0.0-beta.146", "@ethersproject/abi@^5.0.1", "@ethersproject/abi@^5.1.2", "@ethersproject/abi@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abi/-/abi-5.5.0.tgz#fb52820e22e50b854ff15ce1647cc508d6660613"
+  integrity sha512-loW7I4AohP5KycATvc0MgujU6JyCHPqHdeoo9z3Nr9xEiNioxa65ccdm1+fsoJhkuhdRtfcL8cfyGamz2AxZ5w==
+  dependencies:
+    "@ethersproject/address" "^5.5.0"
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/constants" "^5.5.0"
+    "@ethersproject/hash" "^5.5.0"
+    "@ethersproject/keccak256" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/strings" "^5.5.0"
+
+"@ethersproject/abstract-provider@5.5.1", "@ethersproject/abstract-provider@^5.5.0":
+  version "5.5.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abstract-provider/-/abstract-provider-5.5.1.tgz#2f1f6e8a3ab7d378d8ad0b5718460f85649710c5"
+  integrity sha512-m+MA/ful6eKbxpr99xUYeRvLkfnlqzrF8SZ46d/xFB1A7ZVknYc/sXJG0RcufF52Qn2jeFj1hhcoQ7IXjNKUqg==
+  dependencies:
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/networks" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/transactions" "^5.5.0"
+    "@ethersproject/web" "^5.5.0"
+
+"@ethersproject/abstract-signer@5.5.0", "@ethersproject/abstract-signer@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abstract-signer/-/abstract-signer-5.5.0.tgz#590ff6693370c60ae376bf1c7ada59eb2a8dd08d"
+  integrity sha512-lj//7r250MXVLKI7sVarXAbZXbv9P50lgmJQGr2/is82EwEb8r7HrxsmMqAjTsztMYy7ohrIhGMIml+Gx4D3mA==
+  dependencies:
+    "@ethersproject/abstract-provider" "^5.5.0"
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+
+"@ethersproject/address@5.5.0", "@ethersproject/address@>=5.0.0-beta.128", "@ethersproject/address@^5.0.2", "@ethersproject/address@^5.0.4", "@ethersproject/address@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/address/-/address-5.5.0.tgz#bcc6f576a553f21f3dd7ba17248f81b473c9c78f"
+  integrity sha512-l4Nj0eWlTUh6ro5IbPTgbpT4wRbdH5l8CQf7icF7sb/SI3Nhd9Y9HzhonTSTi6CefI0necIw7LJqQPopPLZyWw==
+  dependencies:
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/keccak256" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/rlp" "^5.5.0"
+
+"@ethersproject/base64@5.5.0", "@ethersproject/base64@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/base64/-/base64-5.5.0.tgz#881e8544e47ed976930836986e5eb8fab259c090"
+  integrity sha512-tdayUKhU1ljrlHzEWbStXazDpsx4eg1dBXUSI6+mHlYklOXoXF6lZvw8tnD6oVaWfnMxAgRSKROg3cVKtCcppA==
+  dependencies:
+    "@ethersproject/bytes" "^5.5.0"
+
+"@ethersproject/basex@5.5.0", "@ethersproject/basex@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/basex/-/basex-5.5.0.tgz#e40a53ae6d6b09ab4d977bd037010d4bed21b4d3"
+  integrity sha512-ZIodwhHpVJ0Y3hUCfUucmxKsWQA5TMnavp5j/UOuDdzZWzJlRmuOjcTMIGgHCYuZmHt36BfiSyQPSRskPxbfaQ==
+  dependencies:
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+
+"@ethersproject/bignumber@5.5.0", "@ethersproject/bignumber@>=5.0.0-beta.130", "@ethersproject/bignumber@^5.0.7", "@ethersproject/bignumber@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/bignumber/-/bignumber-5.5.0.tgz#875b143f04a216f4f8b96245bde942d42d279527"
+  integrity sha512-6Xytlwvy6Rn3U3gKEc1vP7nR92frHkv6wtVr95LFR3jREXiCPzdWxKQ1cx4JGQBXxcguAwjA8murlYN2TSiEbg==
   dependencies:
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
     bn.js "^4.11.9"
 
-"@ethersproject/bytes@5.4.0", "@ethersproject/bytes@>=5.0.0-beta.129", "@ethersproject/bytes@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/bytes/-/bytes-5.4.0.tgz#56fa32ce3bf67153756dbaefda921d1d4774404e"
-  integrity sha512-H60ceqgTHbhzOj4uRc/83SCN9d+BSUnOkrr2intevqdtEMO1JFVZ1XL84OEZV+QjV36OaZYxtnt4lGmxcGsPfA==
+"@ethersproject/bytes@5.5.0", "@ethersproject/bytes@>=5.0.0-beta.129", "@ethersproject/bytes@^5.0.4", "@ethersproject/bytes@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/bytes/-/bytes-5.5.0.tgz#cb11c526de657e7b45d2e0f0246fb3b9d29a601c"
+  integrity sha512-ABvc7BHWhZU9PNM/tANm/Qx4ostPGadAuQzWTr3doklZOhDlmcBqclrQe/ZXUIj3K8wC28oYeuRa+A37tX9kog==
   dependencies:
-    "@ethersproject/logger" "^5.4.0"
+    "@ethersproject/logger" "^5.5.0"
 
-"@ethersproject/constants@5.4.0", "@ethersproject/constants@>=5.0.0-beta.128", "@ethersproject/constants@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/constants/-/constants-5.4.0.tgz#ee0bdcb30bf1b532d2353c977bf2ef1ee117958a"
-  integrity sha512-tzjn6S7sj9+DIIeKTJLjK9WGN2Tj0P++Z8ONEIlZjyoTkBuODN+0VfhAyYksKi43l1Sx9tX2VlFfzjfmr5Wl3Q==
+"@ethersproject/constants@5.5.0", "@ethersproject/constants@>=5.0.0-beta.128", "@ethersproject/constants@^5.0.4", "@ethersproject/constants@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/constants/-/constants-5.5.0.tgz#d2a2cd7d94bd1d58377d1d66c4f53c9be4d0a45e"
+  integrity sha512-2MsRRVChkvMWR+GyMGY4N1sAX9Mt3J9KykCsgUFd/1mwS0UH1qw+Bv9k1UJb3X3YJYFco9H20pjSlOIfCG5HYQ==
   dependencies:
-    "@ethersproject/bignumber" "^5.4.0"
+    "@ethersproject/bignumber" "^5.5.0"
 
-"@ethersproject/contracts@5.4.1":
-  version "5.4.1"
-  resolved "https://registry.yarnpkg.com/@ethersproject/contracts/-/contracts-5.4.1.tgz#3eb4f35b7fe60a962a75804ada2746494df3e470"
-  integrity sha512-m+z2ZgPy4pyR15Je//dUaymRUZq5MtDajF6GwFbGAVmKz/RF+DNIPwF0k5qEcL3wPGVqUjFg2/krlCRVTU4T5w==
-  dependencies:
-    "@ethersproject/abi" "^5.4.0"
-    "@ethersproject/abstract-provider" "^5.4.0"
-    "@ethersproject/abstract-signer" "^5.4.0"
-    "@ethersproject/address" "^5.4.0"
-    "@ethersproject/bignumber" "^5.4.0"
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/constants" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
-    "@ethersproject/properties" "^5.4.0"
-    "@ethersproject/transactions" "^5.4.0"
-
-"@ethersproject/hash@5.4.0", "@ethersproject/hash@>=5.0.0-beta.128", "@ethersproject/hash@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/hash/-/hash-5.4.0.tgz#d18a8e927e828e22860a011f39e429d388344ae0"
-  integrity sha512-xymAM9tmikKgbktOCjW60Z5sdouiIIurkZUr9oW5NOex5uwxrbsYG09kb5bMcNjlVeJD3yPivTNzViIs1GCbqA==
-  dependencies:
-    "@ethersproject/abstract-signer" "^5.4.0"
-    "@ethersproject/address" "^5.4.0"
-    "@ethersproject/bignumber" "^5.4.0"
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/keccak256" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
-    "@ethersproject/properties" "^5.4.0"
-    "@ethersproject/strings" "^5.4.0"
-
-"@ethersproject/hdnode@5.4.0", "@ethersproject/hdnode@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/hdnode/-/hdnode-5.4.0.tgz#4bc9999b9a12eb5ce80c5faa83114a57e4107cac"
-  integrity sha512-pKxdS0KAaeVGfZPp1KOiDLB0jba11tG6OP1u11QnYfb7pXn6IZx0xceqWRr6ygke8+Kw74IpOoSi7/DwANhy8Q==
-  dependencies:
-    "@ethersproject/abstract-signer" "^5.4.0"
-    "@ethersproject/basex" "^5.4.0"
-    "@ethersproject/bignumber" "^5.4.0"
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
-    "@ethersproject/pbkdf2" "^5.4.0"
-    "@ethersproject/properties" "^5.4.0"
-    "@ethersproject/sha2" "^5.4.0"
-    "@ethersproject/signing-key" "^5.4.0"
-    "@ethersproject/strings" "^5.4.0"
-    "@ethersproject/transactions" "^5.4.0"
-    "@ethersproject/wordlists" "^5.4.0"
-
-"@ethersproject/json-wallets@5.4.0", "@ethersproject/json-wallets@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/json-wallets/-/json-wallets-5.4.0.tgz#2583341cfe313fc9856642e8ace3080154145e95"
-  integrity sha512-igWcu3fx4aiczrzEHwG1xJZo9l1cFfQOWzTqwRw/xcvxTk58q4f9M7cjh51EKphMHvrJtcezJ1gf1q1AUOfEQQ==
-  dependencies:
-    "@ethersproject/abstract-signer" "^5.4.0"
-    "@ethersproject/address" "^5.4.0"
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/hdnode" "^5.4.0"
-    "@ethersproject/keccak256" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
-    "@ethersproject/pbkdf2" "^5.4.0"
-    "@ethersproject/properties" "^5.4.0"
-    "@ethersproject/random" "^5.4.0"
-    "@ethersproject/strings" "^5.4.0"
-    "@ethersproject/transactions" "^5.4.0"
+"@ethersproject/contracts@5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/contracts/-/contracts-5.5.0.tgz#b735260d4bd61283a670a82d5275e2a38892c197"
+  integrity sha512-2viY7NzyvJkh+Ug17v7g3/IJC8HqZBDcOjYARZLdzRxrfGlRgmYgl6xPRKVbEzy1dWKw/iv7chDcS83pg6cLxg==
+  dependencies:
+    "@ethersproject/abi" "^5.5.0"
+    "@ethersproject/abstract-provider" "^5.5.0"
+    "@ethersproject/abstract-signer" "^5.5.0"
+    "@ethersproject/address" "^5.5.0"
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/constants" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/transactions" "^5.5.0"
+
+"@ethersproject/hash@5.5.0", "@ethersproject/hash@>=5.0.0-beta.128", "@ethersproject/hash@^5.0.4", "@ethersproject/hash@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/hash/-/hash-5.5.0.tgz#7cee76d08f88d1873574c849e0207dcb32380cc9"
+  integrity sha512-dnGVpK1WtBjmnp3mUT0PlU2MpapnwWI0PibldQEq1408tQBAbZpPidkWoVVuNMOl/lISO3+4hXZWCL3YV7qzfg==
+  dependencies:
+    "@ethersproject/abstract-signer" "^5.5.0"
+    "@ethersproject/address" "^5.5.0"
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/keccak256" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/strings" "^5.5.0"
+
+"@ethersproject/hdnode@5.5.0", "@ethersproject/hdnode@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/hdnode/-/hdnode-5.5.0.tgz#4a04e28f41c546f7c978528ea1575206a200ddf6"
+  integrity sha512-mcSOo9zeUg1L0CoJH7zmxwUG5ggQHU1UrRf8jyTYy6HxdZV+r0PBoL1bxr+JHIPXRzS6u/UW4mEn43y0tmyF8Q==
+  dependencies:
+    "@ethersproject/abstract-signer" "^5.5.0"
+    "@ethersproject/basex" "^5.5.0"
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/pbkdf2" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/sha2" "^5.5.0"
+    "@ethersproject/signing-key" "^5.5.0"
+    "@ethersproject/strings" "^5.5.0"
+    "@ethersproject/transactions" "^5.5.0"
+    "@ethersproject/wordlists" "^5.5.0"
+
+"@ethersproject/json-wallets@5.5.0", "@ethersproject/json-wallets@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/json-wallets/-/json-wallets-5.5.0.tgz#dd522d4297e15bccc8e1427d247ec8376b60e325"
+  integrity sha512-9lA21XQnCdcS72xlBn1jfQdj2A1VUxZzOzi9UkNdnokNKke/9Ya2xA9aIK1SC3PQyBDLt4C+dfps7ULpkvKikQ==
+  dependencies:
+    "@ethersproject/abstract-signer" "^5.5.0"
+    "@ethersproject/address" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/hdnode" "^5.5.0"
+    "@ethersproject/keccak256" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/pbkdf2" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/random" "^5.5.0"
+    "@ethersproject/strings" "^5.5.0"
+    "@ethersproject/transactions" "^5.5.0"
     aes-js "3.0.0"
     scrypt-js "3.0.1"
 
-"@ethersproject/keccak256@5.4.0", "@ethersproject/keccak256@>=5.0.0-beta.127", "@ethersproject/keccak256@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/keccak256/-/keccak256-5.4.0.tgz#7143b8eea4976080241d2bd92e3b1f1bf7025318"
-  integrity sha512-FBI1plWet+dPUvAzPAeHzRKiPpETQzqSUWR1wXJGHVWi4i8bOSrpC3NwpkPjgeXG7MnugVc1B42VbfnQikyC/A==
+"@ethersproject/keccak256@5.5.0", "@ethersproject/keccak256@>=5.0.0-beta.127", "@ethersproject/keccak256@^5.0.3", "@ethersproject/keccak256@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/keccak256/-/keccak256-5.5.0.tgz#e4b1f9d7701da87c564ffe336f86dcee82983492"
+  integrity sha512-5VoFCTjo2rYbBe1l2f4mccaRFN/4VQEYFwwn04aJV2h7qf4ZvI2wFxUE1XOX+snbwCLRzIeikOqtAoPwMza9kg==
   dependencies:
-    "@ethersproject/bytes" "^5.4.0"
-    js-sha3 "0.5.7"
+    "@ethersproject/bytes" "^5.5.0"
+    js-sha3 "0.8.0"
 
-"@ethersproject/logger@5.4.1", "@ethersproject/logger@>=5.0.0-beta.129", "@ethersproject/logger@^5.4.0":
-  version "5.4.1"
-  resolved "https://registry.yarnpkg.com/@ethersproject/logger/-/logger-5.4.1.tgz#503bd33683538b923c578c07d1c2c0dd18672054"
-  integrity sha512-DZ+bRinnYLPw1yAC64oRl0QyVZj43QeHIhVKfD/+YwSz4wsv1pfwb5SOFjz+r710YEWzU6LrhuSjpSO+6PeE4A==
+"@ethersproject/logger@5.5.0", "@ethersproject/logger@>=5.0.0-beta.129", "@ethersproject/logger@^5.0.5", "@ethersproject/logger@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/logger/-/logger-5.5.0.tgz#0c2caebeff98e10aefa5aef27d7441c7fd18cf5d"
+  integrity sha512-rIY/6WPm7T8n3qS2vuHTUBPdXHl+rGxWxW5okDfo9J4Z0+gRRZT0msvUdIJkE4/HS29GUMziwGaaKO2bWONBrg==
 
-"@ethersproject/networks@5.4.2", "@ethersproject/networks@^5.4.0":
-  version "5.4.2"
-  resolved "https://registry.yarnpkg.com/@ethersproject/networks/-/networks-5.4.2.tgz#2247d977626e97e2c3b8ee73cd2457babde0ce35"
-  integrity sha512-eekOhvJyBnuibfJnhtK46b8HimBc5+4gqpvd1/H9LEl7Q7/qhsIhM81dI9Fcnjpk3jB1aTy6bj0hz3cifhNeYw==
+"@ethersproject/networks@5.5.0", "@ethersproject/networks@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/networks/-/networks-5.5.0.tgz#babec47cab892c51f8dd652ce7f2e3e14283981a"
+  integrity sha512-KWfP3xOnJeF89Uf/FCJdV1a2aDJe5XTN2N52p4fcQ34QhDqQFkgQKZ39VGtiqUgHcLI8DfT0l9azC3KFTunqtA==
+  dependencies:
+    "@ethersproject/logger" "^5.5.0"
+
+"@ethersproject/pbkdf2@5.5.0", "@ethersproject/pbkdf2@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/pbkdf2/-/pbkdf2-5.5.0.tgz#e25032cdf02f31505d47afbf9c3e000d95c4a050"
+  integrity sha512-SaDvQFvXPnz1QGpzr6/HToLifftSXGoXrbpZ6BvoZhmx4bNLHrxDe8MZisuecyOziP1aVEwzC2Hasj+86TgWVg==
   dependencies:
-    "@ethersproject/logger" "^5.4.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/sha2" "^5.5.0"
 
-"@ethersproject/pbkdf2@5.4.0", "@ethersproject/pbkdf2@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/pbkdf2/-/pbkdf2-5.4.0.tgz#ed88782a67fda1594c22d60d0ca911a9d669641c"
-  integrity sha512-x94aIv6tiA04g6BnazZSLoRXqyusawRyZWlUhKip2jvoLpzJuLb//KtMM6PEovE47pMbW+Qe1uw+68ameJjB7g==
+"@ethersproject/properties@5.5.0", "@ethersproject/properties@>=5.0.0-beta.131", "@ethersproject/properties@^5.0.3", "@ethersproject/properties@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/properties/-/properties-5.5.0.tgz#61f00f2bb83376d2071baab02245f92070c59995"
+  integrity sha512-l3zRQg3JkD8EL3CPjNK5g7kMx4qSwiR60/uk5IVjd3oq1MZR5qUg40CNOoEJoX5wc3DyY5bt9EbMk86C7x0DNA==
   dependencies:
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/sha2" "^5.4.0"
+    "@ethersproject/logger" "^5.5.0"
 
-"@ethersproject/properties@5.4.1", "@ethersproject/properties@>=5.0.0-beta.131", "@ethersproject/properties@^5.4.0":
-  version "5.4.1"
-  resolved "https://registry.yarnpkg.com/@ethersproject/properties/-/properties-5.4.1.tgz#9f051f976ce790142c6261ccb7b826eaae1f2f36"
-  integrity sha512-cyCGlF8wWlIZyizsj2PpbJ9I7rIlUAfnHYwy/T90pdkSn/NFTa5YWZx2wTJBe9V7dD65dcrrEMisCRUJiq6n3w==
-  dependencies:
-    "@ethersproject/logger" "^5.4.0"
-
-"@ethersproject/providers@5.4.5":
-  version "5.4.5"
-  resolved "https://registry.yarnpkg.com/@ethersproject/providers/-/providers-5.4.5.tgz#eb2ea2a743a8115f79604a8157233a3a2c832928"
-  integrity sha512-1GkrvkiAw3Fj28cwi1Sqm8ED1RtERtpdXmRfwIBGmqBSN5MoeRUHuwHPppMtbPayPgpFcvD7/Gdc9doO5fGYgw==
-  dependencies:
-    "@ethersproject/abstract-provider" "^5.4.0"
-    "@ethersproject/abstract-signer" "^5.4.0"
-    "@ethersproject/address" "^5.4.0"
-    "@ethersproject/basex" "^5.4.0"
-    "@ethersproject/bignumber" "^5.4.0"
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/constants" "^5.4.0"
-    "@ethersproject/hash" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
-    "@ethersproject/networks" "^5.4.0"
-    "@ethersproject/properties" "^5.4.0"
-    "@ethersproject/random" "^5.4.0"
-    "@ethersproject/rlp" "^5.4.0"
-    "@ethersproject/sha2" "^5.4.0"
-    "@ethersproject/strings" "^5.4.0"
-    "@ethersproject/transactions" "^5.4.0"
-    "@ethersproject/web" "^5.4.0"
+"@ethersproject/providers@5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/providers/-/providers-5.5.0.tgz#bc2876a8fe5e0053ed9828b1f3767ae46e43758b"
+  integrity sha512-xqMbDnS/FPy+J/9mBLKddzyLLAQFjrVff5g00efqxPzcAwXiR+SiCGVy6eJ5iAIirBOATjx7QLhDNPGV+AEQsw==
+  dependencies:
+    "@ethersproject/abstract-provider" "^5.5.0"
+    "@ethersproject/abstract-signer" "^5.5.0"
+    "@ethersproject/address" "^5.5.0"
+    "@ethersproject/basex" "^5.5.0"
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/constants" "^5.5.0"
+    "@ethersproject/hash" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/networks" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/random" "^5.5.0"
+    "@ethersproject/rlp" "^5.5.0"
+    "@ethersproject/sha2" "^5.5.0"
+    "@ethersproject/strings" "^5.5.0"
+    "@ethersproject/transactions" "^5.5.0"
+    "@ethersproject/web" "^5.5.0"
     bech32 "1.1.4"
     ws "7.4.6"
 
-"@ethersproject/random@5.4.0", "@ethersproject/random@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/random/-/random-5.4.0.tgz#9cdde60e160d024be39cc16f8de3b9ce39191e16"
-  integrity sha512-pnpWNQlf0VAZDEOVp1rsYQosmv2o0ITS/PecNw+mS2/btF8eYdspkN0vIXrCMtkX09EAh9bdk8GoXmFXM1eAKw==
+"@ethersproject/random@5.5.0", "@ethersproject/random@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/random/-/random-5.5.0.tgz#305ed9e033ca537735365ac12eed88580b0f81f9"
+  integrity sha512-egGYZwZ/YIFKMHcoBUo8t3a8Hb/TKYX8BCBoLjudVCZh892welR3jOxgOmb48xznc9bTcMm7Tpwc1gHC1PFNFQ==
   dependencies:
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
 
-"@ethersproject/rlp@5.4.0", "@ethersproject/rlp@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/rlp/-/rlp-5.4.0.tgz#de61afda5ff979454e76d3b3310a6c32ad060931"
-  integrity sha512-0I7MZKfi+T5+G8atId9QaQKHRvvasM/kqLyAH4XxBCBchAooH2EX5rL9kYZWwcm3awYV+XC7VF6nLhfeQFKVPg==
+"@ethersproject/rlp@5.5.0", "@ethersproject/rlp@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/rlp/-/rlp-5.5.0.tgz#530f4f608f9ca9d4f89c24ab95db58ab56ab99a0"
+  integrity sha512-hLv8XaQ8PTI9g2RHoQGf/WSxBfTB/NudRacbzdxmst5VHAqd1sMibWG7SENzT5Dj3yZ3kJYx+WiRYEcQTAkcYA==
   dependencies:
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
 
-"@ethersproject/sha2@5.4.0", "@ethersproject/sha2@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/sha2/-/sha2-5.4.0.tgz#c9a8db1037014cbc4e9482bd662f86c090440371"
-  integrity sha512-siheo36r1WD7Cy+bDdE1BJ8y0bDtqXCOxRMzPa4bV1TGt/eTUUt03BHoJNB6reWJD8A30E/pdJ8WFkq+/uz4Gg==
+"@ethersproject/sha2@5.5.0", "@ethersproject/sha2@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/sha2/-/sha2-5.5.0.tgz#a40a054c61f98fd9eee99af2c3cc6ff57ec24db7"
+  integrity sha512-B5UBoglbCiHamRVPLA110J+2uqsifpZaTmid2/7W5rbtYVz6gus6/hSDieIU/6gaKIDcOj12WnOdiymEUHIAOA==
   dependencies:
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
     hash.js "1.1.7"
 
-"@ethersproject/signing-key@5.4.0", "@ethersproject/signing-key@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/signing-key/-/signing-key-5.4.0.tgz#2f05120984e81cf89a3d5f6dec5c68ee0894fbec"
-  integrity sha512-q8POUeywx6AKg2/jX9qBYZIAmKSB4ubGXdQ88l40hmATj29JnG5pp331nAWwwxPn2Qao4JpWHNZsQN+bPiSW9A==
+"@ethersproject/signing-key@5.5.0", "@ethersproject/signing-key@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/signing-key/-/signing-key-5.5.0.tgz#2aa37169ce7e01e3e80f2c14325f624c29cedbe0"
+  integrity sha512-5VmseH7qjtNmDdZBswavhotYbWB0bOwKIlOTSlX14rKn5c11QmJwGt4GHeo7NrL/Ycl7uo9AHvEqs5xZgFBTng==
   dependencies:
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
-    "@ethersproject/properties" "^5.4.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
     bn.js "^4.11.9"
     elliptic "6.5.4"
     hash.js "1.1.7"
 
-"@ethersproject/solidity@5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/solidity/-/solidity-5.4.0.tgz#1305e058ea02dc4891df18b33232b11a14ece9ec"
-  integrity sha512-XFQTZ7wFSHOhHcV1DpcWj7VXECEiSrBuv7JErJvB9Uo+KfCdc3QtUZV+Vjh/AAaYgezUEKbCtE6Khjm44seevQ==
-  dependencies:
-    "@ethersproject/bignumber" "^5.4.0"
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/keccak256" "^5.4.0"
-    "@ethersproject/sha2" "^5.4.0"
-    "@ethersproject/strings" "^5.4.0"
-
-"@ethersproject/strings@5.4.0", "@ethersproject/strings@>=5.0.0-beta.130", "@ethersproject/strings@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/strings/-/strings-5.4.0.tgz#fb12270132dd84b02906a8d895ae7e7fa3d07d9a"
-  integrity sha512-k/9DkH5UGDhv7aReXLluFG5ExurwtIpUfnDNhQA29w896Dw3i4uDTz01Quaptbks1Uj9kI8wo9tmW73wcIEaWA==
-  dependencies:
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/constants" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
-
-"@ethersproject/transactions@5.4.0", "@ethersproject/transactions@^5.0.0-beta.135", "@ethersproject/transactions@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/transactions/-/transactions-5.4.0.tgz#a159d035179334bd92f340ce0f77e83e9e1522e0"
-  integrity sha512-s3EjZZt7xa4BkLknJZ98QGoIza94rVjaEed0rzZ/jB9WrIuu/1+tjvYCWzVrystXtDswy7TPBeIepyXwSYa4WQ==
-  dependencies:
-    "@ethersproject/address" "^5.4.0"
-    "@ethersproject/bignumber" "^5.4.0"
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/constants" "^5.4.0"
-    "@ethersproject/keccak256" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
-    "@ethersproject/properties" "^5.4.0"
-    "@ethersproject/rlp" "^5.4.0"
-    "@ethersproject/signing-key" "^5.4.0"
-
-"@ethersproject/units@5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/units/-/units-5.4.0.tgz#d57477a4498b14b88b10396062c8cbbaf20c79fe"
-  integrity sha512-Z88krX40KCp+JqPCP5oPv5p750g+uU6gopDYRTBGcDvOASh6qhiEYCRatuM/suC4S2XW9Zz90QI35MfSrTIaFg==
-  dependencies:
-    "@ethersproject/bignumber" "^5.4.0"
-    "@ethersproject/constants" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
-
-"@ethersproject/wallet@5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/wallet/-/wallet-5.4.0.tgz#fa5b59830b42e9be56eadd45a16a2e0933ad9353"
-  integrity sha512-wU29majLjM6AjCjpat21mPPviG+EpK7wY1+jzKD0fg3ui5fgedf2zEu1RDgpfIMsfn8fJHJuzM4zXZ2+hSHaSQ==
-  dependencies:
-    "@ethersproject/abstract-provider" "^5.4.0"
-    "@ethersproject/abstract-signer" "^5.4.0"
-    "@ethersproject/address" "^5.4.0"
-    "@ethersproject/bignumber" "^5.4.0"
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/hash" "^5.4.0"
-    "@ethersproject/hdnode" "^5.4.0"
-    "@ethersproject/json-wallets" "^5.4.0"
-    "@ethersproject/keccak256" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
-    "@ethersproject/properties" "^5.4.0"
-    "@ethersproject/random" "^5.4.0"
-    "@ethersproject/signing-key" "^5.4.0"
-    "@ethersproject/transactions" "^5.4.0"
-    "@ethersproject/wordlists" "^5.4.0"
-
-"@ethersproject/web@5.4.0", "@ethersproject/web@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/web/-/web-5.4.0.tgz#49fac173b96992334ed36a175538ba07a7413d1f"
-  integrity sha512-1bUusGmcoRLYgMn6c1BLk1tOKUIFuTg8j+6N8lYlbMpDesnle+i3pGSagGNvwjaiLo4Y5gBibwctpPRmjrh4Og==
-  dependencies:
-    "@ethersproject/base64" "^5.4.0"
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
-    "@ethersproject/properties" "^5.4.0"
-    "@ethersproject/strings" "^5.4.0"
-
-"@ethersproject/wordlists@5.4.0", "@ethersproject/wordlists@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@ethersproject/wordlists/-/wordlists-5.4.0.tgz#f34205ec3bbc9e2c49cadaee774cf0b07e7573d7"
-  integrity sha512-FemEkf6a+EBKEPxlzeVgUaVSodU7G0Na89jqKjmWMlDB0tomoU8RlEMgUvXyqtrg8N4cwpLh8nyRnm1Nay1isA==
-  dependencies:
-    "@ethersproject/bytes" "^5.4.0"
-    "@ethersproject/hash" "^5.4.0"
-    "@ethersproject/logger" "^5.4.0"
-    "@ethersproject/properties" "^5.4.0"
-    "@ethersproject/strings" "^5.4.0"
+"@ethersproject/solidity@5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/solidity/-/solidity-5.5.0.tgz#2662eb3e5da471b85a20531e420054278362f93f"
+  integrity sha512-9NgZs9LhGMj6aCtHXhtmFQ4AN4sth5HuFXVvAQtzmm0jpSCNOTGtrHZJAeYTh7MBjRR8brylWZxBZR9zDStXbw==
+  dependencies:
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/keccak256" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/sha2" "^5.5.0"
+    "@ethersproject/strings" "^5.5.0"
+
+"@ethersproject/strings@5.5.0", "@ethersproject/strings@>=5.0.0-beta.130", "@ethersproject/strings@^5.0.4", "@ethersproject/strings@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/strings/-/strings-5.5.0.tgz#e6784d00ec6c57710755699003bc747e98c5d549"
+  integrity sha512-9fy3TtF5LrX/wTrBaT8FGE6TDJyVjOvXynXJz5MT5azq+E6D92zuKNx7i29sWW2FjVOaWjAsiZ1ZWznuduTIIQ==
+  dependencies:
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/constants" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+
+"@ethersproject/transactions@5.5.0", "@ethersproject/transactions@^5.0.0-beta.135", "@ethersproject/transactions@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/transactions/-/transactions-5.5.0.tgz#7e9bf72e97bcdf69db34fe0d59e2f4203c7a2908"
+  integrity sha512-9RZYSKX26KfzEd/1eqvv8pLauCKzDTub0Ko4LfIgaERvRuwyaNV78mJs7cpIgZaDl6RJui4o49lHwwCM0526zA==
+  dependencies:
+    "@ethersproject/address" "^5.5.0"
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/constants" "^5.5.0"
+    "@ethersproject/keccak256" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/rlp" "^5.5.0"
+    "@ethersproject/signing-key" "^5.5.0"
+
+"@ethersproject/units@5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/units/-/units-5.5.0.tgz#104d02db5b5dc42cc672cc4587bafb87a95ee45e"
+  integrity sha512-7+DpjiZk4v6wrikj+TCyWWa9dXLNU73tSTa7n0TSJDxkYbV3Yf1eRh9ToMLlZtuctNYu9RDNNy2USq3AdqSbag==
+  dependencies:
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/constants" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+
+"@ethersproject/wallet@5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/wallet/-/wallet-5.5.0.tgz#322a10527a440ece593980dca6182f17d54eae75"
+  integrity sha512-Mlu13hIctSYaZmUOo7r2PhNSd8eaMPVXe1wxrz4w4FCE4tDYBywDH+bAR1Xz2ADyXGwqYMwstzTrtUVIsKDO0Q==
+  dependencies:
+    "@ethersproject/abstract-provider" "^5.5.0"
+    "@ethersproject/abstract-signer" "^5.5.0"
+    "@ethersproject/address" "^5.5.0"
+    "@ethersproject/bignumber" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/hash" "^5.5.0"
+    "@ethersproject/hdnode" "^5.5.0"
+    "@ethersproject/json-wallets" "^5.5.0"
+    "@ethersproject/keccak256" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/random" "^5.5.0"
+    "@ethersproject/signing-key" "^5.5.0"
+    "@ethersproject/transactions" "^5.5.0"
+    "@ethersproject/wordlists" "^5.5.0"
+
+"@ethersproject/web@5.5.0", "@ethersproject/web@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/web/-/web-5.5.0.tgz#0e5bb21a2b58fb4960a705bfc6522a6acf461e28"
+  integrity sha512-BEgY0eL5oH4mAo37TNYVrFeHsIXLRxggCRG/ksRIxI2X5uj5IsjGmcNiRN/VirQOlBxcUhCgHhaDLG4m6XAVoA==
+  dependencies:
+    "@ethersproject/base64" "^5.5.0"
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/strings" "^5.5.0"
+
+"@ethersproject/wordlists@5.5.0", "@ethersproject/wordlists@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@ethersproject/wordlists/-/wordlists-5.5.0.tgz#aac74963aa43e643638e5172353d931b347d584f"
+  integrity sha512-bL0UTReWDiaQJJYOC9sh/XcRu/9i2jMrzf8VLRmPKx58ckSlOJiohODkECCO50dtLZHcGU6MLXQ4OOrgBwP77Q==
+  dependencies:
+    "@ethersproject/bytes" "^5.5.0"
+    "@ethersproject/hash" "^5.5.0"
+    "@ethersproject/logger" "^5.5.0"
+    "@ethersproject/properties" "^5.5.0"
+    "@ethersproject/strings" "^5.5.0"
 
 "@nodelib/fs.scandir@2.1.5":
   version "2.1.5"
@@ -561,9 +576,9 @@
   integrity sha512-6quxWe8wwS4X5v3Au8q1jOvXYEPkS1Fh+cME5u6AwNdnI4uERvPlVjlgRWzpnb+Rrt1l/cEqiNRH9GlsBMSDQg==
 
 "@nomiclabs/hardhat-etherscan@^2.1.6":
-  version "2.1.6"
-  resolved "https://registry.yarnpkg.com/@nomiclabs/hardhat-etherscan/-/hardhat-etherscan-2.1.6.tgz#8d1502f42adc6f7b8ef16fb917c0b5a8780cb83a"
-  integrity sha512-gCvT5fj8GbXS9+ACS3BzrX0pzYHHZqAHCb+NcipOkl2cy48FakUXlzrCf4P4sTH+Y7W10OgT62ezD1sJ+/NikQ==
+  version "2.1.7"
+  resolved "https://registry.yarnpkg.com/@nomiclabs/hardhat-etherscan/-/hardhat-etherscan-2.1.7.tgz#f76ce0da1b503d3e506bffbd044967b1a9443675"
+  integrity sha512-9nt9EXubnkd2aTMnQIqKtp80bQFhun88krfB31FN2wB0T54b8YuK0riG2d+EKq/D3t1Kb00oA7oFSFpHLIbLDQ==
   dependencies:
     "@ethersproject/abi" "^5.1.2"
     "@ethersproject/address" "^5.0.2"
@@ -710,11 +725,6 @@
   dependencies:
     "@sinonjs/commons" "^1.7.0"
 
-"@solidity-parser/parser@^0.11.0":
-  version "0.11.1"
-  resolved "https://registry.yarnpkg.com/@solidity-parser/parser/-/parser-0.11.1.tgz#fa840af64840c930f24a9c82c08d4a092a068add"
-  integrity sha512-H8BSBoKE8EubJa0ONqecA2TviT3TnHeC4NpgnAHSUiuhZoQBfPB4L2P9bs8R6AoTW10Endvh3vc+fomVMIDIYQ==
-
 "@solidity-parser/parser@^0.12.0":
   version "0.12.2"
   resolved "https://registry.yarnpkg.com/@solidity-parser/parser/-/parser-0.12.2.tgz#1afad367cb29a2ed8cdd4a3a62701c2821fb578f"
@@ -727,6 +737,13 @@
   dependencies:
     antlr4ts "^0.5.0-alpha.4"
 
+"@solidity-parser/parser@^0.14.0":
+  version "0.14.0"
+  resolved "https://registry.yarnpkg.com/@solidity-parser/parser/-/parser-0.14.0.tgz#d51f074efb0acce0e953ec48133561ed710cebc0"
+  integrity sha512-cX0JJRcmPtNUJpzD2K7FdA7qQsTOk1UZnFx2k7qAg9ZRvuaH5NBe5IEdBMXGlmf2+FmjhqbygJ26H8l2SV7aKQ==
+  dependencies:
+    antlr4ts "^0.5.0-alpha.4"
+
 "@szmarczak/http-timer@^1.1.2":
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/@szmarczak/http-timer/-/http-timer-1.1.2.tgz#b1665e2c461a2cd92f4c1bbf50d5454de0d4b421"
@@ -734,6 +751,29 @@
   dependencies:
     defer-to-connect "^1.0.1"
 
+"@truffle/error@^0.0.14":
+  version "0.0.14"
+  resolved "https://registry.yarnpkg.com/@truffle/error/-/error-0.0.14.tgz#59683b5407bede7bddf16d80dc5592f9c5e5fa05"
+  integrity sha512-utJx+SZYoMqk8wldQG4gCVKhV8GwMJbWY7sLXFT/D8wWZTnE2peX7URFJh/cxkjTRCO328z1s2qewkhyVsu2HA==
+
+"@truffle/interface-adapter@^0.5.8":
+  version "0.5.8"
+  resolved "https://registry.yarnpkg.com/@truffle/interface-adapter/-/interface-adapter-0.5.8.tgz#76cfd34374d85849e1164de1a3d5a3dce0dc5d01"
+  integrity sha512-vvy3xpq36oLgjjy8KE9l2Jabg3WcGPOt18tIyMfTQX9MFnbHoQA2Ne2i8xsd4p6KfxIqSjAB53Q9/nScAqY0UQ==
+  dependencies:
+    bn.js "^5.1.3"
+    ethers "^4.0.32"
+    web3 "1.5.3"
+
+"@truffle/provider@^0.2.24":
+  version "0.2.42"
+  resolved "https://registry.yarnpkg.com/@truffle/provider/-/provider-0.2.42.tgz#9da6a144b3c9188cdb587451dd7bd907b4c7164b"
+  integrity sha512-ZNoglPho4alYIjJR+sLTgX0x6ho7m4OAUWuJ50RAWmoEqYc4AM6htdrI+lTSoRrOHHbmgasv22a7rFPMnmDrTg==
+  dependencies:
+    "@truffle/error" "^0.0.14"
+    "@truffle/interface-adapter" "^0.5.8"
+    web3 "1.5.3"
+
 "@tsconfig/node10@^1.0.7":
   version "1.0.8"
   resolved "https://registry.yarnpkg.com/@tsconfig/node10/-/node10-1.0.8.tgz#c1e4e80d6f964fbecb3359c43bd48b40f7cadad9"
@@ -762,17 +802,17 @@
     ethers "^5.0.2"
 
 "@typechain/ethers-v5@^7.1.2":
-  version "7.1.2"
-  resolved "https://registry.yarnpkg.com/@typechain/ethers-v5/-/ethers-v5-7.1.2.tgz#dbf31663f75cc50f2d9ad232f6e354c6a3e81465"
-  integrity sha512-sD4HVkTL5aIJa3Ft+CmqiOapba0zzZ8xa+QywcWH40Rm/dcxvZWwcCMnnI3En0JebkxOcAVfH3do+kQ9rKSxYw==
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@typechain/ethers-v5/-/ethers-v5-7.2.0.tgz#d559cffe0efe6bdbc20e644b817f6fa8add5e8f8"
+  integrity sha512-jfcmlTvaaJjng63QsT49MT6R1HFhtO/TBMWbyzPFSzMmVIqb2tL6prnKBs4ZJrSvmgIXWy+ttSjpaxCTq8D/Tw==
   dependencies:
     lodash "^4.17.15"
     ts-essentials "^7.0.1"
 
 "@typechain/hardhat@^2.3.0":
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/@typechain/hardhat/-/hardhat-2.3.0.tgz#dc7f29281637b38b77c7c046ae82700703395d0f"
-  integrity sha512-zERrtNol86L4DX60ktnXxP7Cq8rSZHPaQvsChyiQQVuvVs2FTLm24Yi+MYnfsIdbUBIXZG7SxDWhtCF5I0tJNQ==
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/@typechain/hardhat/-/hardhat-2.3.1.tgz#1e8a6e3795e115a5d5348526282b5c597fab0b78"
+  integrity sha512-BQV8OKQi0KAzLXCdsPO0pZBNQQ6ra8A2ucC26uFX/kquRBtJu1yEyWnVSmtr07b5hyRoJRpzUeINLnyqz4/MAw==
   dependencies:
     fs-extra "^9.1.0"
 
@@ -814,6 +854,14 @@
   dependencies:
     "@types/node" "*"
 
+"@types/glob@^7.1.1":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@types/glob/-/glob-7.2.0.tgz#bc1b5bf3aa92f25bd5dd39f35c57361bdce5b2eb"
+  integrity sha512-ZUxbzKl0IfJILTS6t7ip5fQQM/J3TJYubDm3nMbgubNNYS62eXeUpoLUC8/7fJNiFYHTrGPQn7hspDUzIHX3UA==
+  dependencies:
+    "@types/minimatch" "*"
+    "@types/node" "*"
+
 "@types/json-schema@^7.0.3":
   version "7.0.9"
   resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.9.tgz#97edc9037ea0c38585320b28964dde3b39e4660d"
@@ -843,6 +891,11 @@
   resolved "https://registry.yarnpkg.com/@types/lru-cache/-/lru-cache-5.1.1.tgz#c48c2e27b65d2a153b19bfc1a317e30872e01eef"
   integrity sha512-ssE3Vlrys7sdIzs5LOxCzTVMsU7i9oa/IaW92wF32JFb3CVczqOkru2xspuKczHEbG3nvmPY7IFqVmGGHdNbYw==
 
+"@types/minimatch@*":
+  version "3.0.5"
+  resolved "https://registry.yarnpkg.com/@types/minimatch/-/minimatch-3.0.5.tgz#1001cc5e6a3704b83c236027e77f2f58ea010f40"
+  integrity sha512-Klz949h02Gz2uZCMGwDUSDS1YBlTdDDgbWHi+81l29tQALUtvz4rAYi5uoVhE5Lagoq6DeqAUlbrHvW/mXDgdQ==
+
 "@types/mkdirp@^0.5.2":
   version "0.5.2"
   resolved "https://registry.yarnpkg.com/@types/mkdirp/-/mkdirp-0.5.2.tgz#503aacfe5cc2703d5484326b1b27efa67a339c1f"
@@ -864,9 +917,9 @@
     form-data "^3.0.0"
 
 "@types/node@*", "@types/node@^16.10.1":
-  version "16.10.1"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-16.10.1.tgz#f3647623199ca920960006b3dccf633ea905f243"
-  integrity sha512-4/Z9DMPKFexZj/Gn3LylFgamNKHm4K3QDi0gz9B26Uk0c8izYf97B5fxfpspMNkWlFupblKM/nV8+NA9Ffvr+w==
+  version "16.11.3"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-16.11.3.tgz#fad0b069ec205b0e81429c805d306d2c12e26be1"
+  integrity sha512-aIYL9Eemcecs1y77XzFGiSc+FdfN58k4J23UEe6+hynf4Wd9g4DzQPwIKL080vSMuubFqy2hWwOzCtJdc6vFKw==
 
 "@types/node@^10.0.3":
   version "10.17.60"
@@ -874,9 +927,9 @@
   integrity sha512-F0KIgDJfy2nA3zMLmWGKxcH2ZVEtCZXHHdOQs2gSaQ27+lNeEfGxzkIw90aXswATX7AZ33tahPbzy6KAfUreVw==
 
 "@types/node@^12.12.6":
-  version "12.20.27"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-12.20.27.tgz#4141fcad57c332a120591de883e26fe4bb14aaea"
-  integrity sha512-qZdePUDSLAZRXXV234bLBEUM0nAQjoxbcSwp1rqSMUe1rZ47mwU6OjciR/JvF1Oo8mc0ys6GE0ks0HGgqAZoGg==
+  version "12.20.33"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-12.20.33.tgz#24927446e8b7669d10abacedd16077359678f436"
+  integrity sha512-5XmYX2GECSa+CxMYaFsr2mrql71Q4EvHjKS+ox/SiwSdaASMoBIWE6UmZqFO+VX1jIcsYLStI4FFoB6V7FeIYw==
 
 "@types/node@^8.0.0":
   version "8.10.66"
@@ -1017,6 +1070,16 @@
   resolved "https://registry.yarnpkg.com/@yarnpkg/lockfile/-/lockfile-1.1.0.tgz#e77a97fbd345b76d83245edcd17d393b1b41fb31"
   integrity sha512-GpSwvyXOcOOlV70vbnzjj4fW5xW/FdUF6nQEt1ENy7m4ZCczi1+/buVUPAqmGfqznsORNFzUMjctTIp8a9tuCQ==
 
+abbrev@1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
+  integrity sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==
+
+abbrev@1.0.x:
+  version "1.0.9"
+  resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.0.9.tgz#91b4792588a7738c25f35dd6f63752a2f8776135"
+  integrity sha1-kbR5JYinc4wl813W9jdSovh3YTU=
+
 abort-controller@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/abort-controller/-/abort-controller-3.0.0.tgz#eaf54d53b62bae4138e809ca225c8439a6efb392"
@@ -1102,6 +1165,11 @@ acorn@^8.4.1:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.5.0.tgz#4512ccb99b3698c752591e9bb4472e38ad43cee2"
   integrity sha512-yXbYeFy+jUuYd3/CDcg2NkIYE991XYX/bje7LmjJigUciaeO1JR4XxXgCIV1/Zc/dRuFEyw1L0pbA+qynJkW5Q==
 
+address@^1.0.1:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/address/-/address-1.1.2.tgz#bf1116c9c758c51b7a933d296b72c221ed9428b6"
+  integrity sha512-aT6camzM4xEA54YVJYSqxz1kv4IHnQZRtThJJHhUMRExaU5spC7jX5ugSwTaTgJliIgs4VhZOk7htClvQ/LmRA==
+
 adm-zip@^0.4.16:
   version "0.4.16"
   resolved "https://registry.yarnpkg.com/adm-zip/-/adm-zip-0.4.16.tgz#cf4c508fdffab02c269cbc7f471a875f05570365"
@@ -1134,6 +1202,11 @@ ajv@^6.10.2, ajv@^6.12.3, ajv@^6.6.1, ajv@^6.9.1:
     json-schema-traverse "^0.4.1"
     uri-js "^4.2.2"
 
+amdefine@>=0.0.4:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/amdefine/-/amdefine-1.0.1.tgz#4a5282ac164729e93619bcfd3ad151f817ce91f5"
+  integrity sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=
+
 ansi-colors@3.2.3:
   version "3.2.3"
   resolved "https://registry.yarnpkg.com/ansi-colors/-/ansi-colors-3.2.3.tgz#57d35b8686e851e2cc04c403f1c00203976a1813"
@@ -1341,6 +1414,11 @@ async-limiter@~1.0.0:
   resolved "https://registry.yarnpkg.com/async-limiter/-/async-limiter-1.0.1.tgz#dd379e94f0db8310b08291f9d64c3209766617fd"
   integrity sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ==
 
+async@1.x, async@^1.4.2:
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
+  integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
+
 async@2.6.2:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/async/-/async-2.6.2.tgz#18330ea7e6e313887f5d2f2a904bac6fe4dd5381"
@@ -1348,11 +1426,6 @@ async@2.6.2:
   dependencies:
     lodash "^4.17.11"
 
-async@^1.4.2:
-  version "1.5.2"
-  resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
-  integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
-
 async@^2.0.1, async@^2.1.2, async@^2.4.0, async@^2.5.0, async@^2.6.1:
   version "2.6.3"
   resolved "https://registry.yarnpkg.com/async/-/async-2.6.3.tgz#d72625e2344a3656e3a3ad4fa749fa83299d82ff"
@@ -1375,6 +1448,11 @@ atob@^2.1.2:
   resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
   integrity sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg==
 
+available-typed-arrays@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/available-typed-arrays/-/available-typed-arrays-1.0.5.tgz#92f95616501069d07d10edb2fc37d3e1c65123b7"
+  integrity sha512-DMD0KiN46eipeziST1LPP/STfDU0sufISXmjSgvVsoU2tqxctQeASejWcfNtxYKqETM1UxQ8sp2OrSBWpHY6sw==
+
 aws-sign2@~0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.7.0.tgz#b46e890934a9591f2d2f6f86d7e6a9f1b3fe76a8"
@@ -2003,12 +2081,12 @@ bn.js@4.11.6:
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.6.tgz#53344adb14617a13f6e8dd2ce28905d1c0ba3215"
   integrity sha1-UzRK2xRhehP26N0s4okF0cC6MhU=
 
-bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.10.0, bn.js@^4.11.0, bn.js@^4.11.1, bn.js@^4.11.6, bn.js@^4.11.8, bn.js@^4.11.9, bn.js@^4.8.0:
+bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.10.0, bn.js@^4.11.0, bn.js@^4.11.6, bn.js@^4.11.8, bn.js@^4.11.9, bn.js@^4.8.0:
   version "4.12.0"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.12.0.tgz#775b3f278efbb9718eec7361f483fb36fbbfea88"
   integrity sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA==
 
-bn.js@^5.0.0, bn.js@^5.1.1, bn.js@^5.1.2:
+bn.js@^5.0.0, bn.js@^5.1.1, bn.js@^5.1.2, bn.js@^5.1.3, bn.js@^5.2.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-5.2.0.tgz#358860674396c6997771a9d051fcc1b57d4ae002"
   integrity sha512-D7iWRBvnZE8ecXiLj/9wbxH7Tk79fAh8IHaTNq1RWRixsS02W+5qS+iE9yq6RYl0asXx5tw0bLhmT5pIfbSquw==
@@ -2179,11 +2257,11 @@ buffer@^5.0.5, buffer@^5.2.1, buffer@^5.5.0, buffer@^5.6.0:
     ieee754 "^1.1.13"
 
 bufferutil@^4.0.1:
-  version "4.0.4"
-  resolved "https://registry.yarnpkg.com/bufferutil/-/bufferutil-4.0.4.tgz#ab81373d313a6ead0d734e98c448c722734ae7bb"
-  integrity sha512-VNxjXUCrF3LvbLgwfkTb5LsFvk6pGIn7OBb9x+3o+iJ6mKw0JTUp4chBFc88hi1aspeZGeZG9jAIbpFYPQSLZw==
+  version "4.0.5"
+  resolved "https://registry.yarnpkg.com/bufferutil/-/bufferutil-4.0.5.tgz#da9ea8166911cc276bf677b8aed2d02d31f59028"
+  integrity sha512-HTm14iMQKK2FjFLRTM5lAVcyaUzOnqbPtesFIvREgXpJHdQm8bWS+GkQgIkfaBYRHuCnea7w8UVNfwiAQhlr9A==
   dependencies:
-    node-gyp-build "^4.2.0"
+    node-gyp-build "^4.3.0"
 
 bytes@3.1.0:
   version "3.1.0"
@@ -2284,9 +2362,9 @@ camelcase@^5.0.0:
   integrity sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==
 
 caniuse-lite@^1.0.30000844:
-  version "1.0.30001261"
-  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001261.tgz#96d89813c076ea061209a4e040d8dcf0c66a1d01"
-  integrity sha512-vM8D9Uvp7bHIN0fZ2KQ4wnmYFpJo/Etb4Vwsuc+ka0tfGDHvOPrFm6S/7CCNLSOkAUjenT2HnUPESdOIL91FaA==
+  version "1.0.30001271"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001271.tgz#0dda0c9bcae2cf5407cd34cac304186616cc83e8"
+  integrity sha512-BBruZFWmt3HFdVPS8kceTBIguKxu4f99n5JNp06OlPD/luoAMIaIK5ieV5YjnBLH3Nysai9sxj9rpJj4ZisXOA==
 
 caseless@^0.12.0, caseless@~0.12.0:
   version "0.12.0"
@@ -2606,9 +2684,9 @@ cookie@^0.4.1:
   integrity sha512-ZwrFkGJxUR3EIoXtO+yVE69Eb7KlixbaeAWfBQB9vVsNn/o+Yw69gBWSSDK825hQNdN+wF8zELf3dFNl/kxkUA==
 
 cookiejar@^2.1.1:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/cookiejar/-/cookiejar-2.1.2.tgz#dd8a235530752f988f9a0844f3fc589e3111125c"
-  integrity sha512-Mw+adcfzPxcPeI+0WlvRrr/3lGVO0bD75SxX6811cxSh1Wbxx7xZBGK1eVtDf6si8rg2lhnUjsVLMFMfbRIuwA==
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/cookiejar/-/cookiejar-2.1.3.tgz#fc7a6216e408e74414b90230050842dacda75acc"
+  integrity sha512-JxbCBUdrfr6AQjOXrxoTvAMJO4HBTUIlBzslcJPAz+/KT8yk53fXun51u+RenNYvad/+Vc2DIz5o9UxlCDymFQ==
 
 copy-descriptor@^0.1.0:
   version "0.1.1"
@@ -2616,9 +2694,9 @@ copy-descriptor@^0.1.0:
   integrity sha1-Z29us8OZl8LuGsOpJP1hJHSPV40=
 
 core-js-pure@^3.0.1:
-  version "3.18.1"
-  resolved "https://registry.yarnpkg.com/core-js-pure/-/core-js-pure-3.18.1.tgz#097d34d24484be45cea700a448d1e74622646c80"
-  integrity sha512-kmW/k8MaSuqpvA1xm2l3TVlBuvW+XBkcaOroFUpO3D4lsTGQWBTb/tBDCf/PNkkPLrwgrkQRIYNPB0CeqGJWGQ==
+  version "3.18.3"
+  resolved "https://registry.yarnpkg.com/core-js-pure/-/core-js-pure-3.18.3.tgz#7eed77dcce1445ab68fd68715856633e2fb3b90c"
+  integrity sha512-qfskyO/KjtbYn09bn1IPkuhHl5PlJ6IzJ9s9sraJ1EqcuGyLGKzhSM1cY0zgyL9hx42eulQLZ6WaeK5ycJCkqw==
 
 core-js@^2.4.0, core-js@^2.5.0:
   version "2.6.12"
@@ -2705,7 +2783,7 @@ cross-fetch@^2.1.0, cross-fetch@^2.1.1:
     node-fetch "2.6.1"
     whatwg-fetch "2.0.4"
 
-cross-spawn@^6.0.5:
+cross-spawn@^6.0.0, cross-spawn@^6.0.5:
   version "6.0.5"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-6.0.5.tgz#4a5ec7c64dfae22c3a14124dbacdee846d80cbc4"
   integrity sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==
@@ -2753,7 +2831,12 @@ dashdash@^1.12.0:
   dependencies:
     assert-plus "^1.0.0"
 
-debug@2.6.9, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@^2.6.9:
+death@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/death/-/death-1.1.0.tgz#01aa9c401edd92750514470b8266390c66c67318"
+  integrity sha1-AaqcQB7dknUFFEcLgmY5DGbGcxg=
+
+debug@2.6.9, debug@^2.2.0, debug@^2.3.3, debug@^2.6.0, debug@^2.6.8, debug@^2.6.9:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   integrity sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==
@@ -2914,6 +2997,14 @@ detect-indent@^4.0.0:
   dependencies:
     repeating "^2.0.0"
 
+detect-port@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/detect-port/-/detect-port-1.3.0.tgz#d9c40e9accadd4df5cac6a782aefd014d573d1f1"
+  integrity sha512-E+B1gzkl2gqxt1IhUzwjrxBKRqx1UzC3WLONHinn8S3T6lwV/agVCyitiFOsGJ/eYuEUBvD71MZHy3Pv1G9doQ==
+  dependencies:
+    address "^1.0.1"
+    debug "^2.6.0"
+
 diff@3.5.0:
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/diff/-/diff-3.5.0.tgz#800c0dd1e0a8bfbc95835c202ad220fe317e5a12"
@@ -2999,9 +3090,9 @@ ee-first@1.1.1:
   integrity sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=
 
 electron-to-chromium@^1.3.47:
-  version "1.3.851"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.851.tgz#457846fce94d5de25511570435a94f1a622203ac"
-  integrity sha512-Ak970eGtRSoHTaJkoDjdkeXYetbwm5Bl9pN/nPOQ3QzLfw1EWRjReOlWUra6o58SVgxfpwOT9U2P1BUXoJ57dw==
+  version "1.3.877"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.877.tgz#956870eea7c9d8cf43cc54ea40687fee4dc0c12a"
+  integrity sha512-fT5mW5Giw5iyVukeHb2XvB4joBKvzHtl8Vs3QzE7APATpFMt/T7RWyUcIKSZzYkKQgpMbu+vDBTCHfQZvh8klA==
 
 elliptic@6.5.4, elliptic@^6.4.0, elliptic@^6.5.2, elliptic@^6.5.3:
   version "6.5.4"
@@ -3097,31 +3188,7 @@ error-ex@^1.2.0, error-ex@^1.3.1:
   dependencies:
     is-arrayish "^0.2.1"
 
-es-abstract@^1.18.0-next.2:
-  version "1.18.6"
-  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.18.6.tgz#2c44e3ea7a6255039164d26559777a6d978cb456"
-  integrity sha512-kAeIT4cku5eNLNuUKhlmtuk1/TRZvQoYccn6TO0cSVdf1kzB0T7+dYuVK9MWM7l+/53W2Q8M7N2c6MQvhXFcUQ==
-  dependencies:
-    call-bind "^1.0.2"
-    es-to-primitive "^1.2.1"
-    function-bind "^1.1.1"
-    get-intrinsic "^1.1.1"
-    get-symbol-description "^1.0.0"
-    has "^1.0.3"
-    has-symbols "^1.0.2"
-    internal-slot "^1.0.3"
-    is-callable "^1.2.4"
-    is-negative-zero "^2.0.1"
-    is-regex "^1.1.4"
-    is-string "^1.0.7"
-    object-inspect "^1.11.0"
-    object-keys "^1.1.1"
-    object.assign "^4.1.2"
-    string.prototype.trimend "^1.0.4"
-    string.prototype.trimstart "^1.0.4"
-    unbox-primitive "^1.0.1"
-
-es-abstract@^1.19.0, es-abstract@^1.19.1:
+es-abstract@^1.18.5, es-abstract@^1.19.0, es-abstract@^1.19.1:
   version "1.19.1"
   resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.19.1.tgz#d4885796876916959de78edaa0df456627115ec3"
   integrity sha512-2vJ6tjA/UfqLm2MPs7jxVybLoB8i1t1Jd9R3kISld20sIxPcTbLuggQOUxeWeAvIUkduv/CfMjuh4WmiXr2v9w==
@@ -3197,6 +3264,18 @@ escape-string-regexp@^4.0.0:
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-4.0.0.tgz#14ba83a5d373e3d311e5afca29cf5bfad965bf34"
   integrity sha512-TtpcNJ3XAzx3Gq8sWRzJaVajRs0uVxA2YAkdb1jm2YkPz4G6egUFAyA3n5vtEIZefPk5Wa4UXbKuS5fKkJWdgA==
 
+escodegen@1.8.x:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.8.1.tgz#5a5b53af4693110bebb0867aa3430dd3b70a1018"
+  integrity sha1-WltTr0aTEQvrsIZ6o0MN07cKEBg=
+  dependencies:
+    esprima "^2.7.1"
+    estraverse "^1.9.1"
+    esutils "^2.0.2"
+    optionator "^0.8.1"
+  optionalDependencies:
+    source-map "~0.2.0"
+
 eslint-config-prettier@^8.3.0:
   version "8.3.0"
   resolved "https://registry.yarnpkg.com/eslint-config-prettier/-/eslint-config-prettier-8.3.0.tgz#f7471b20b6fe8a9a9254cc684454202886a2dd7a"
@@ -3329,6 +3408,11 @@ espree@^5.0.1:
     acorn-jsx "^5.0.0"
     eslint-visitor-keys "^1.0.0"
 
+esprima@2.7.x, esprima@^2.7.1:
+  version "2.7.3"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
+  integrity sha1-luO3DVd59q1JzQMmc9HDEnZ7pYE=
+
 esprima@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.1.tgz#13b04cdb3e6c5d19df91ab6987a8695619b0aa71"
@@ -3348,6 +3432,11 @@ esrecurse@^4.1.0, esrecurse@^4.3.0:
   dependencies:
     estraverse "^5.2.0"
 
+estraverse@^1.9.1:
+  version "1.9.3"
+  resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-1.9.3.tgz#af67f2dc922582415950926091a4005d29c9bb44"
+  integrity sha1-r2fy3JIlgkFZUJJgkaQAXSnJu0Q=
+
 estraverse@^4.1.1:
   version "4.3.0"
   resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-4.3.0.tgz#398ad3f3c5a24948be7725e83d11a7de28cdbd1d"
@@ -3728,16 +3817,15 @@ ethereumjs-util@^5.0.0, ethereumjs-util@^5.0.1, ethereumjs-util@^5.1.1, ethereum
     rlp "^2.0.0"
     safe-buffer "^5.1.1"
 
-ethereumjs-util@^7.0.2, ethereumjs-util@^7.1.0, ethereumjs-util@^7.1.1:
-  version "7.1.1"
-  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-7.1.1.tgz#236ef435f46820f0c420a708c0559b5897952069"
-  integrity sha512-1CGBmCp3m8IMGHhAJF/icH8qjCJrfQtaZ9KW+cAVV8kyN5Lc1IRq3KjV77ILOutrCwiyf5y2gMyCrAUMoCf2Ag==
+ethereumjs-util@^7.0.10, ethereumjs-util@^7.0.2, ethereumjs-util@^7.1.0, ethereumjs-util@^7.1.1, ethereumjs-util@^7.1.2:
+  version "7.1.3"
+  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-7.1.3.tgz#b55d7b64dde3e3e45749e4c41288238edec32d23"
+  integrity sha512-y+82tEbyASO0K0X1/SRhbJJoAlfcvq8JbrG4a5cjrOks7HS/36efU/0j2flxCPOUM++HFahk33kr/ZxyC4vNuw==
   dependencies:
     "@types/bn.js" "^5.1.0"
     bn.js "^5.1.2"
     create-hash "^1.1.2"
     ethereum-cryptography "^0.1.3"
-    ethjs-util "0.1.6"
     rlp "^2.2.4"
 
 ethereumjs-vm@4.2.0:
@@ -3793,7 +3881,7 @@ ethereumjs-wallet@0.6.5:
     utf8 "^3.0.0"
     uuid "^3.3.2"
 
-ethers@^4.0.40:
+ethers@^4.0.32, ethers@^4.0.40:
   version "4.0.49"
   resolved "https://registry.yarnpkg.com/ethers/-/ethers-4.0.49.tgz#0eb0e9161a0c8b4761be547396bbe2fb121a8894"
   integrity sha512-kPltTvWiyu+OktYy1IStSO16i2e7cS9D9OxZ81q2UUaiNPVrm/RTcbxamCXF9VUSKzJIdJV68EAIhTEVBalRWg==
@@ -3809,40 +3897,40 @@ ethers@^4.0.40:
     xmlhttprequest "1.8.0"
 
 ethers@^5.0.1, ethers@^5.0.2, ethers@^5.4.7:
-  version "5.4.7"
-  resolved "https://registry.yarnpkg.com/ethers/-/ethers-5.4.7.tgz#0fd491a5da7c9793de2d6058d76b41b1e7efba8f"
-  integrity sha512-iZc5p2nqfWK1sj8RabwsPM28cr37Bpq7ehTQ5rWExBr2Y09Sn1lDKZOED26n+TsZMye7Y6mIgQ/1cwpSD8XZew==
-  dependencies:
-    "@ethersproject/abi" "5.4.1"
-    "@ethersproject/abstract-provider" "5.4.1"
-    "@ethersproject/abstract-signer" "5.4.1"
-    "@ethersproject/address" "5.4.0"
-    "@ethersproject/base64" "5.4.0"
-    "@ethersproject/basex" "5.4.0"
-    "@ethersproject/bignumber" "5.4.2"
-    "@ethersproject/bytes" "5.4.0"
-    "@ethersproject/constants" "5.4.0"
-    "@ethersproject/contracts" "5.4.1"
-    "@ethersproject/hash" "5.4.0"
-    "@ethersproject/hdnode" "5.4.0"
-    "@ethersproject/json-wallets" "5.4.0"
-    "@ethersproject/keccak256" "5.4.0"
-    "@ethersproject/logger" "5.4.1"
-    "@ethersproject/networks" "5.4.2"
-    "@ethersproject/pbkdf2" "5.4.0"
-    "@ethersproject/properties" "5.4.1"
-    "@ethersproject/providers" "5.4.5"
-    "@ethersproject/random" "5.4.0"
-    "@ethersproject/rlp" "5.4.0"
-    "@ethersproject/sha2" "5.4.0"
-    "@ethersproject/signing-key" "5.4.0"
-    "@ethersproject/solidity" "5.4.0"
-    "@ethersproject/strings" "5.4.0"
-    "@ethersproject/transactions" "5.4.0"
-    "@ethersproject/units" "5.4.0"
-    "@ethersproject/wallet" "5.4.0"
-    "@ethersproject/web" "5.4.0"
-    "@ethersproject/wordlists" "5.4.0"
+  version "5.5.1"
+  resolved "https://registry.yarnpkg.com/ethers/-/ethers-5.5.1.tgz#d3259a95a42557844aa543906c537106c0406fbf"
+  integrity sha512-RodEvUFZI+EmFcE6bwkuJqpCYHazdzeR1nMzg+YWQSmQEsNtfl1KHGfp/FWZYl48bI/g7cgBeP2IlPthjiVngw==
+  dependencies:
+    "@ethersproject/abi" "5.5.0"
+    "@ethersproject/abstract-provider" "5.5.1"
+    "@ethersproject/abstract-signer" "5.5.0"
+    "@ethersproject/address" "5.5.0"
+    "@ethersproject/base64" "5.5.0"
+    "@ethersproject/basex" "5.5.0"
+    "@ethersproject/bignumber" "5.5.0"
+    "@ethersproject/bytes" "5.5.0"
+    "@ethersproject/constants" "5.5.0"
+    "@ethersproject/contracts" "5.5.0"
+    "@ethersproject/hash" "5.5.0"
+    "@ethersproject/hdnode" "5.5.0"
+    "@ethersproject/json-wallets" "5.5.0"
+    "@ethersproject/keccak256" "5.5.0"
+    "@ethersproject/logger" "5.5.0"
+    "@ethersproject/networks" "5.5.0"
+    "@ethersproject/pbkdf2" "5.5.0"
+    "@ethersproject/properties" "5.5.0"
+    "@ethersproject/providers" "5.5.0"
+    "@ethersproject/random" "5.5.0"
+    "@ethersproject/rlp" "5.5.0"
+    "@ethersproject/sha2" "5.5.0"
+    "@ethersproject/signing-key" "5.5.0"
+    "@ethersproject/solidity" "5.5.0"
+    "@ethersproject/strings" "5.5.0"
+    "@ethersproject/transactions" "5.5.0"
+    "@ethersproject/units" "5.5.0"
+    "@ethersproject/wallet" "5.5.0"
+    "@ethersproject/web" "5.5.0"
+    "@ethersproject/wordlists" "5.5.0"
 
 ethjs-unit@0.1.6:
   version "0.1.6"
@@ -3883,6 +3971,19 @@ evp_bytestokey@^1.0.0, evp_bytestokey@^1.0.3:
     md5.js "^1.3.4"
     safe-buffer "^5.1.1"
 
+execa@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/execa/-/execa-1.0.0.tgz#c6236a5bb4df6d6f15e88e7f017798216749ddd8"
+  integrity sha512-adbxcyWV46qiHyvSp50TKt05tB4tK3HcmF7/nxfAdhnox83seTDbwnaqKO4sXRy7roHAIFqJP/Rw/AuEbX61LA==
+  dependencies:
+    cross-spawn "^6.0.0"
+    get-stream "^4.0.0"
+    is-stream "^1.1.0"
+    npm-run-path "^2.0.0"
+    p-finally "^1.0.0"
+    signal-exit "^3.0.0"
+    strip-eof "^1.0.0"
+
 exit-on-epipe@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/exit-on-epipe/-/exit-on-epipe-1.0.1.tgz#0bdd92e87d5285d267daa8171d0eb06159689692"
@@ -4014,7 +4115,7 @@ fast-diff@^1.1.2:
   resolved "https://registry.yarnpkg.com/fast-diff/-/fast-diff-1.2.0.tgz#73ee11982d86caaf7959828d519cfe927fac5f03"
   integrity sha512-xJuoT5+L99XlZ8twedaRf6Ax2TgQVxvgZOYoPKqZufmJib0tL2tegPBOZb1pVNgIhlqDlA0eO0c3wBvQcmzx4w==
 
-fast-glob@^3.1.1:
+fast-glob@^3.0.3, fast-glob@^3.1.1:
   version "3.2.7"
   resolved "https://registry.yarnpkg.com/fast-glob/-/fast-glob-3.2.7.tgz#fd6cb7a2d7e9aa7a7846111e85a196d6b2f766a1"
   integrity sha512-rYGMRwip6lUMvYD3BTScMwT1HtAs2d71SMv66Vrxs0IekGZEjhM0pcMfjQPnknBt2zeCwQMEupiN02ZP4DiT1Q==
@@ -4186,6 +4287,11 @@ for-in@^1.0.2:
   resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
   integrity sha1-gQaNKVqBQuwKxybG4iAMMPttXoA=
 
+foreach@^2.0.5:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/foreach/-/foreach-2.0.5.tgz#0bee005018aeb260d0a3af3ae658dd0136ec1b99"
+  integrity sha1-C+4AUBiusmDQo6865ljdATbsG5k=
+
 forever-agent@~0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.6.1.tgz#fbc71f0c41adeb37f96c577ad1ed42d8fdacca91"
@@ -4274,6 +4380,15 @@ fs-extra@^7.0.0, fs-extra@^7.0.1:
     jsonfile "^4.0.0"
     universalify "^0.1.0"
 
+fs-extra@^8.1.0:
+  version "8.1.0"
+  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-8.1.0.tgz#49d43c45a88cd9677668cb7be1b46efdb8d2e1c0"
+  integrity sha512-yhlQgA6mnOJUKOsRUFsgJdQCvkKhcz8tlZG5HBQfReYZy46OwLcY+Zia0mtdHsOo9y/hP+CxMN0TU9QxoOtG4g==
+  dependencies:
+    graceful-fs "^4.2.0"
+    jsonfile "^4.0.0"
+    universalify "^0.1.0"
+
 fs-extra@^9.1.0:
   version "9.1.0"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-9.1.0.tgz#5954460c764a8da2094ba3554bf839e6b9a7c86d"
@@ -4321,6 +4436,15 @@ functional-red-black-tree@^1.0.1, functional-red-black-tree@~1.0.1:
   resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
   integrity sha1-GwqzvVU7Kg1jmdKcDj6gslIHgyc=
 
+ganache-cli@^6.12.2:
+  version "6.12.2"
+  resolved "https://registry.yarnpkg.com/ganache-cli/-/ganache-cli-6.12.2.tgz#c0920f7db0d4ac062ffe2375cb004089806f627a"
+  integrity sha512-bnmwnJDBDsOWBUP8E/BExWf85TsdDEFelQSzihSJm9VChVO1SHp94YXLP5BlA4j/OTxp0wR4R1Tje9OHOuAJVw==
+  dependencies:
+    ethereumjs-util "6.2.1"
+    source-map-support "0.5.12"
+    yargs "13.2.4"
+
 ganache-core@^2.13.2:
   version "2.13.2"
   resolved "https://registry.yarnpkg.com/ganache-core/-/ganache-core-2.13.2.tgz#27e6fc5417c10e6e76e2e646671869d7665814a3"
@@ -4392,7 +4516,7 @@ get-stream@^3.0.0:
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
   integrity sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ=
 
-get-stream@^4.1.0:
+get-stream@^4.0.0, get-stream@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-4.1.0.tgz#c1b255575f3dc21d59bfc79cd3d2b46b1c3a54b5"
   integrity sha512-GMat4EJ5161kIy2HevLlr4luNjBgvmj413KaQA7jt4V8B4RDsfpHk7WQ9GVqfYyyx8OS/L66Kox+rJRNklLK7w==
@@ -4426,6 +4550,14 @@ getpass@^0.1.1:
   dependencies:
     assert-plus "^1.0.0"
 
+ghost-testrpc@^0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/ghost-testrpc/-/ghost-testrpc-0.0.2.tgz#c4de9557b1d1ae7b2d20bbe474a91378ca90ce92"
+  integrity sha512-i08dAEgJ2g8z5buJIrCTduwPIhih3DP+hOCTyyryikfV8T0bNvHnGXO67i0DD1H4GBDETTclPy9njZbfluQYrQ==
+  dependencies:
+    chalk "^2.4.2"
+    node-emoji "^1.10.0"
+
 glob-parent@^5.1.2, glob-parent@~5.1.0, glob-parent@~5.1.2:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-5.1.2.tgz#869832c58034fe68a4093c17dc15e8340d8401c4"
@@ -4445,7 +4577,18 @@ glob@7.1.3:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-glob@^7.1.2, glob@^7.1.3, glob@^7.1.6:
+glob@^5.0.15:
+  version "5.0.15"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-5.0.15.tgz#1bc936b9e02f4a603fcc222ecf7633d30b8b93b1"
+  integrity sha1-G8k2ueAvSmA/zCIuz3Yz0wuLk7E=
+  dependencies:
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "2 || 3"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
+glob@^7.0.0, glob@^7.1.2, glob@^7.1.3, glob@^7.1.6:
   version "7.2.0"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.2.0.tgz#d15535af7732e02e948f4c41628bd910293f6023"
   integrity sha512-lmLf6gtyrPq8tTjSmrO94wBeQbFR3HbLHbuyD69wuyQkImp2hWqMGB47OX65FBkPffO641IP9jWa1z4ivqG26Q==
@@ -4469,6 +4612,22 @@ glob@~7.1.7:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
+global-modules@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/global-modules/-/global-modules-2.0.0.tgz#997605ad2345f27f51539bea26574421215c7780"
+  integrity sha512-NGbfmJBp9x8IxyJSd1P+otYK8vonoJactOogrVfFRIAEY1ukil8RSKDz2Yo7wh1oihl51l/r6W4epkeKJHqL8A==
+  dependencies:
+    global-prefix "^3.0.0"
+
+global-prefix@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/global-prefix/-/global-prefix-3.0.0.tgz#fc85f73064df69f50421f47f883fe5b913ba9b97"
+  integrity sha512-awConJSVCHVGND6x3tmMaKcQvwXLhjdkmomy2W+Goaui8YPgYgXJZewhg3fWC+DlfqqQuWg8AwqjGTD2nAPVWg==
+  dependencies:
+    ini "^1.3.5"
+    kind-of "^6.0.2"
+    which "^1.3.1"
+
 global@~4.4.0:
   version "4.4.0"
   resolved "https://registry.yarnpkg.com/global/-/global-4.4.0.tgz#3e7b105179006a323ed71aafca3e9c57a5cc6406"
@@ -4487,6 +4646,20 @@ globals@^9.18.0:
   resolved "https://registry.yarnpkg.com/globals/-/globals-9.18.0.tgz#aa3896b3e69b487f17e31ed2143d69a8e30c2d8a"
   integrity sha512-S0nG3CLEQiY/ILxqtztTWH/3iRRdyBLw6KMDxnKMchrtbj2OFmehVh0WUCfW3DUrIgx/qFrJPICrq4Z4sTR9UQ==
 
+globby@^10.0.1:
+  version "10.0.2"
+  resolved "https://registry.yarnpkg.com/globby/-/globby-10.0.2.tgz#277593e745acaa4646c3ab411289ec47a0392543"
+  integrity sha512-7dUi7RvCoT/xast/o/dLN53oqND4yk0nsHkhRgn9w65C4PofCLOoJ39iSOg+qVDdWQPIEj+eszMHQ+aLVwwQSg==
+  dependencies:
+    "@types/glob" "^7.1.1"
+    array-union "^2.1.0"
+    dir-glob "^3.0.1"
+    fast-glob "^3.0.3"
+    glob "^7.1.3"
+    ignore "^5.1.1"
+    merge2 "^1.2.3"
+    slash "^3.0.0"
+
 globby@^11.0.1:
   version "11.0.4"
   resolved "https://registry.yarnpkg.com/globby/-/globby-11.0.4.tgz#2cbaff77c2f2a62e71e9b2813a67b97a3a3001a5"
@@ -4546,6 +4719,18 @@ growl@1.10.5:
   resolved "https://registry.yarnpkg.com/growl/-/growl-1.10.5.tgz#f2735dc2283674fa67478b10181059355c369e5e"
   integrity sha512-qBr4OuELkhPenW6goKVXiv47US3clb3/IbuWF9KNKEijAy9oeHxU9IgzjvJhHkUzhaj7rOUD7+YGWqUjLp5oSA==
 
+handlebars@^4.0.1:
+  version "4.7.7"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.7.7.tgz#9ce33416aad02dbd6c8fafa8240d5d98004945a1"
+  integrity sha512-aAcXm5OAfE/8IXkcZvCepKU3VzW1/39Fb5ZuqMtgI/hT8X2YgoMvBY5dLhq/cpOvw7Lk1nK/UF71aLG/ZnVYRA==
+  dependencies:
+    minimist "^1.2.5"
+    neo-async "^2.6.0"
+    source-map "^0.6.1"
+    wordwrap "^1.0.0"
+  optionalDependencies:
+    uglify-js "^3.1.4"
+
 har-schema@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-2.0.0.tgz#a94c2224ebcac04782a0d9035521f24735b7ec92"
@@ -4568,9 +4753,9 @@ hardhat-gas-reporter@^1.0.4:
     sha1 "^1.1.1"
 
 hardhat@^2.6.4:
-  version "2.6.4"
-  resolved "https://registry.yarnpkg.com/hardhat/-/hardhat-2.6.4.tgz#9ff3f139f697bfc4e14836a3fef3ca4c62357d65"
-  integrity sha512-6QNfu1FptjtyGJ+jBR7LMX7AMY9gWWw9kAUD7v0YZNZH1ZBgsZdMHqXKiSzO5pLQXo+fy9zZovKAUNYbjQ/1fw==
+  version "2.6.7"
+  resolved "https://registry.yarnpkg.com/hardhat/-/hardhat-2.6.7.tgz#f9949e58f019439f0c5299b24e7f91d6c6a5ff29"
+  integrity sha512-Mua01f6ZN1feQLktHSH2p5A5LCdA+Wf7+O2lJDH6wClvWPtI2eqKNNY2gxBwYXoQ28GZrT3K6mqQOZeRWAca6Q==
   dependencies:
     "@ethereumjs/block" "^3.4.0"
     "@ethereumjs/blockchain" "^5.4.0"
@@ -4579,7 +4764,7 @@ hardhat@^2.6.4:
     "@ethereumjs/vm" "^5.5.2"
     "@ethersproject/abi" "^5.1.2"
     "@sentry/node" "^5.18.1"
-    "@solidity-parser/parser" "^0.11.0"
+    "@solidity-parser/parser" "^0.14.0"
     "@types/bn.js" "^5.1.0"
     "@types/lru-cache" "^5.1.0"
     abort-controller "^3.0.0"
@@ -4632,6 +4817,11 @@ has-bigints@^1.0.1:
   resolved "https://registry.yarnpkg.com/has-bigints/-/has-bigints-1.0.1.tgz#64fe6acb020673e3b78db035a5af69aa9d07b113"
   integrity sha512-LSBS2LjbNBTf6287JEbEzvJgftkF5qFkmCo9hDRpAzKhUOlJ+hx8dd4USs00SgsUNwc4617J9ki5YtEClM2ffA==
 
+has-flag@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-1.0.0.tgz#9d9e793165ce017a00f00418c43f942a7b1d11fa"
+  integrity sha1-nZ55MWXOAXoA8AQYxD+UKnsdEfo=
+
 has-flag@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
@@ -4853,7 +5043,7 @@ ignore@^4.0.6:
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-4.0.6.tgz#750e3db5862087b4737ebac8207ffd1ef27b25fc"
   integrity sha512-cyFDKrqc/YdcWFniJhzI42+AzS+gNwmUzOSFcRCQYwySuBBBy/KjuxWLZ/FHEH6Moq1NizMOBWyTcv8O4OZIMg==
 
-ignore@^5.1.4:
+ignore@^5.1.1, ignore@^5.1.4:
   version "5.1.8"
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-5.1.8.tgz#f150a8b50a34289b33e22f5889abd4d8016f0e57"
   integrity sha512-BMpfD7PpiETpBl/A6S498BaIJ6Y/ABT93ETbby2fP00v4EbvPBXWEoaR1UBPKs3iR53pJY7EtZk5KACI57i1Uw==
@@ -4869,9 +5059,9 @@ immediate@~3.2.3:
   integrity sha1-0UD6j2FGWb1lQSMwl92qwlzdmRw=
 
 immutable@^4.0.0-rc.12:
-  version "4.0.0-rc.15"
-  resolved "https://registry.yarnpkg.com/immutable/-/immutable-4.0.0-rc.15.tgz#c30056f05eaaf5650fd15230586688fdd15c54bc"
-  integrity sha512-v8+A3sNyaieoP9dHegl3tEYnIZa7vqNiSv0U6D7YddiZi34VjKy4GsIxrRHj2d8+CS3MeiVja5QyNe4JO/aEXA==
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/immutable/-/immutable-4.0.0.tgz#b86f78de6adef3608395efb269a91462797e2c23"
+  integrity sha512-zIE9hX70qew5qTUjSS7wi1iwj/l7+m54KWU247nhM3v806UdGj1yDndXj+IOYxxtW9zyLI+xqFNZjTuDaLUqFw==
 
 import-fresh@^2.0.0:
   version "2.0.0"
@@ -4912,6 +5102,11 @@ inherits@2.0.3:
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
   integrity sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=
 
+ini@^1.3.5:
+  version "1.3.8"
+  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.8.tgz#a29da425b48806f34767a4efce397269af28432c"
+  integrity sha512-JV/yugV2uzW5iMRSiZAyDtQd+nxtUnjeLt0acNdw98kKLrvuRVyB80tsREOE7yvGVgalhZ6RNXCmEHkUKBKxew==
+
 inquirer@^6.2.2:
   version "6.5.2"
   resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-6.5.2.tgz#ad50942375d036d327ff528c08bd5fab089928ca"
@@ -4940,6 +5135,11 @@ internal-slot@^1.0.3:
     has "^1.0.3"
     side-channel "^1.0.4"
 
+interpret@^1.0.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.4.0.tgz#665ab8bc4da27a774a40584e812e3e0fa45b1a1e"
+  integrity sha512-agE4QfB2Lkp9uICn7BAqoscw4SZP9kTE2hxiFI3jBPmXJfdqiahTbUuKGsMoN2GtqL9AxhYioAcVvgsb1HvRbA==
+
 invariant@^2.2.2:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.4.tgz#610f3c92c9359ce1db616e538008d23ff35158e6"
@@ -4952,6 +5152,11 @@ invert-kv@^1.0.0:
   resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-1.0.0.tgz#104a8e4aaca6d3d8cd157a8ef8bfab2d7a3ffdb6"
   integrity sha1-EEqOSqym09jNFXqO+L+rLXo//bY=
 
+invert-kv@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-2.0.0.tgz#7393f5afa59ec9ff5f67a27620d11c226e3eec02"
+  integrity sha512-wPVv/y/QQ/Uiirj/vh3oP+1Ww+AWehmi1g5fFWGPF6IpCBCDVrhgHRMvrLfdYcwDh3QJbGXDW4JAuzxElLSqKA==
+
 io-ts@1.10.4:
   version "1.10.4"
   resolved "https://registry.yarnpkg.com/io-ts/-/io-ts-1.10.4.tgz#cd5401b138de88e4f920adbcb7026e2d1967e6e2"
@@ -5036,9 +5241,9 @@ is-ci@^2.0.0:
     ci-info "^2.0.0"
 
 is-core-module@^2.2.0, is-core-module@^2.7.0:
-  version "2.7.0"
-  resolved "https://registry.yarnpkg.com/is-core-module/-/is-core-module-2.7.0.tgz#3c0ef7d31b4acfc574f80c58409d568a836848e3"
-  integrity sha512-ByY+tjCciCr+9nLryBYcSD50EOGWt95c7tIsKTG1J2ixKKXPvF7Ej3AVd+UfDydAJom3biBGDBALaO79ktwgEQ==
+  version "2.8.0"
+  resolved "https://registry.yarnpkg.com/is-core-module/-/is-core-module-2.8.0.tgz#0321336c3d0925e497fd97f5d95cb114a5ccd548"
+  integrity sha512-vd15qHsaqrRL7dtH6QNuy0ndJmRDrS9HAM1CAiSifNUFv4x1a0CCVsj18hJ1mShxIG6T2i1sO78MkP56r0nYRw==
   dependencies:
     has "^1.0.3"
 
@@ -5140,14 +5345,14 @@ is-function@^1.0.1:
   resolved "https://registry.yarnpkg.com/is-function/-/is-function-1.0.2.tgz#4f097f30abf6efadac9833b17ca5dc03f8144e08"
   integrity sha512-lw7DUp0aWXYg+CBCN+JKkcE0Q2RayZnSvnZBlwgxHBQhqt5pZNVy4Ri7H9GmmXkdu7LUthszM+Tor1u/2iBcpQ==
 
-is-glob@^4.0.1, is-glob@~4.0.1:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-4.0.2.tgz#859fc2e731e58c902f99fcabccb75a7dd07d29d8"
-  integrity sha512-ZZTOjRcDjuAAAv2cTBQP/lL59ZTArx77+7UzHdWW/XB1mrfp7DEaVpKmZ0XIzx+M7AxfhKcqV+nMetUQmFifwg==
+is-generator-function@^1.0.7:
+  version "1.0.10"
+  resolved "https://registry.yarnpkg.com/is-generator-function/-/is-generator-function-1.0.10.tgz#f1558baf1ac17e0deea7c0415c438351ff2b3c72"
+  integrity sha512-jsEjy9l3yiXEQ+PsXdmBwEPcOxaXWLspKdplFUVI9vq1iZgIekeC0L167qeu86czQaxed3q/Uzuw0swL0irL8A==
   dependencies:
-    is-extglob "^2.1.1"
+    has-tostringtag "^1.0.0"
 
-is-glob@^4.0.3:
+is-glob@^4.0.1, is-glob@^4.0.3, is-glob@~4.0.1:
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-4.0.3.tgz#64f61e42cbbb2eec2071a9dac0b28ba1e65d5084"
   integrity sha512-xelSayHH36ZgE7ZWhli7pW34hNbNl8Ojv5KVmkJD4hBdD3th8Tfk9vYasLM+mXWOZhFkgZfxhLSnrwRr4elSSg==
@@ -5218,7 +5423,7 @@ is-shared-array-buffer@^1.0.1:
   resolved "https://registry.yarnpkg.com/is-shared-array-buffer/-/is-shared-array-buffer-1.0.1.tgz#97b0c85fbdacb59c9c446fe653b82cf2b5b7cfe6"
   integrity sha512-IU0NmyknYZN0rChcKhRO1X8LYz5Isj/Fsqh8NJOSf+N/hCOTwy29F32Ik7a+QszE63IdvmwdTPDd6cZ5pg4cwA==
 
-is-stream@^1.0.0, is-stream@^1.0.1:
+is-stream@^1.0.0, is-stream@^1.0.1, is-stream@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
   integrity sha1-EtSj3U5o4Lec6428hBc66A2RykQ=
@@ -5237,6 +5442,17 @@ is-symbol@^1.0.2, is-symbol@^1.0.3:
   dependencies:
     has-symbols "^1.0.2"
 
+is-typed-array@^1.1.3, is-typed-array@^1.1.7:
+  version "1.1.8"
+  resolved "https://registry.yarnpkg.com/is-typed-array/-/is-typed-array-1.1.8.tgz#cbaa6585dc7db43318bc5b89523ea384a6f65e79"
+  integrity sha512-HqH41TNZq2fgtGT8WHVFVJhBVGuY3AnP3Q36K8JKXUxSxRgk/d+7NjmwG2vo2mYmXK8UYZKu0qH8bVP5gEisjA==
+  dependencies:
+    available-typed-arrays "^1.0.5"
+    call-bind "^1.0.2"
+    es-abstract "^1.18.5"
+    foreach "^2.0.5"
+    has-tostringtag "^1.0.0"
+
 is-typedarray@^1.0.0, is-typedarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-typedarray/-/is-typedarray-1.0.0.tgz#e479c80858df0c1b11ddda6940f96011fcda4a9a"
@@ -5339,7 +5555,7 @@ js-yaml@3.13.1:
     argparse "^1.0.7"
     esprima "^4.0.0"
 
-js-yaml@^3.12.0, js-yaml@^3.13.0, js-yaml@^3.13.1:
+js-yaml@3.x, js-yaml@^3.12.0, js-yaml@^3.13.0, js-yaml@^3.13.1:
   version "3.14.1"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.14.1.tgz#dae812fdb3825fa306609a8717383c50c36a0537"
   integrity sha512-okMH7OXXJ7YrN9Ok3/SXrnu4iX9yOk+25nqX4imS2npuvTYDmo/QEZoqwZkYaIDk3jVvBOTOIEgEhaLOynBS9g==
@@ -5463,6 +5679,11 @@ jsonify@~0.0.0:
   resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
   integrity sha1-LHS27kHZPKUbe1qu6PUDYx0lKnM=
 
+jsonschema@^1.2.4:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/jsonschema/-/jsonschema-1.4.0.tgz#1afa34c4bc22190d8e42271ec17ac8b3404f87b2"
+  integrity sha512-/YgW6pRMr6M7C+4o8kS+B/2myEpHCrxO4PEWnqJNBFMjn7EWXqlQ4tGwL6xTHeRplwuZmcAncdvfOad1nT2yMw==
+
 jsprim@^1.2.2:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/jsprim/-/jsprim-1.4.1.tgz#313e66bc1e5cc06e438bc1b7499c2e5c56acb6a2"
@@ -5552,6 +5773,13 @@ lcid@^1.0.0:
   dependencies:
     invert-kv "^1.0.0"
 
+lcid@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/lcid/-/lcid-2.0.0.tgz#6ef5d2df60e52f82eb228a4c373e8d1f397253cf"
+  integrity sha512-avPEb8P8EGnwXKClwsNUgryVjllcRqtMYa49NTsbQagYuT1DcXnl1915oxWjoyGrXR6zH/Y0Zc96xWsPcoDKeA==
+  dependencies:
+    invert-kv "^2.0.0"
+
 level-codec@^9.0.0:
   version "9.0.2"
   resolved "https://registry.yarnpkg.com/level-codec/-/level-codec-9.0.2.tgz#fd60df8c64786a80d44e63423096ffead63d8cbc"
@@ -5794,7 +6022,7 @@ lodash@4.17.20:
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
   integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
 
-lodash@^4.17.11, lodash@^4.17.12, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.4:
+lodash@^4.17.11, lodash@^4.17.12, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.21, lodash@^4.17.4:
   version "4.17.21"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
   integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
@@ -5874,6 +6102,13 @@ make-error@^1.1.1:
   resolved "https://registry.yarnpkg.com/make-error/-/make-error-1.3.6.tgz#2eb2e37ea9b67c4891f684a1394799af484cf7a2"
   integrity sha512-s8UhlNe7vPKomQhC1qFelMokr/Sc3AgNbso3n74mVPA5LTZwkB9NlXf4XPamLxJE8h0gh73rM94xvwRT2CVInw==
 
+map-age-cleaner@^0.1.1:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/map-age-cleaner/-/map-age-cleaner-0.1.3.tgz#7d583a7306434c055fe474b0f45078e6e1b4b92a"
+  integrity sha512-bJzx6nMoP6PDLPBFmg7+xRKeFZvFboMrGlxmNj9ClvX53KrmvM5bXFXEWjbz4cz1AFn+jWJ9z/DJSz7hrs0w3w==
+  dependencies:
+    p-defer "^1.0.0"
+
 map-cache@^0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/map-cache/-/map-cache-0.2.2.tgz#c32abd0bd6525d9b051645bb4f26ac5dc98a0dbf"
@@ -5910,6 +6145,15 @@ media-typer@0.3.0:
   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
   integrity sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g=
 
+mem@^4.0.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/mem/-/mem-4.3.0.tgz#461af497bc4ae09608cdb2e60eefb69bff744178"
+  integrity sha512-qX2bG48pTqYRVmDB37rn/6PT7LcR8T7oAX3bf99u1Tt1nzxYfxkgqDwUwolPlXweM0XzBOBFzSx4kfp7KP1s/w==
+  dependencies:
+    map-age-cleaner "^0.1.1"
+    mimic-fn "^2.0.0"
+    p-is-promise "^2.0.0"
+
 memdown@^1.0.0:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/memdown/-/memdown-1.4.1.tgz#b4e4e192174664ffbae41361aa500f3119efe215"
@@ -5956,7 +6200,7 @@ merge-descriptors@1.0.1:
   resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
   integrity sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E=
 
-merge2@^1.3.0:
+merge2@^1.2.3, merge2@^1.3.0:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/merge2/-/merge2-1.4.1.tgz#4368892f885e907455a6fd7dc55c0c9d404990ae"
   integrity sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg==
@@ -5989,12 +6233,12 @@ merkle-patricia-tree@^2.1.2, merkle-patricia-tree@^2.3.2:
     semaphore ">=1.0.1"
 
 merkle-patricia-tree@^4.2.0, merkle-patricia-tree@^4.2.1:
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/merkle-patricia-tree/-/merkle-patricia-tree-4.2.1.tgz#fc43e7b162e597a0720ccdd702bf1d49765691d2"
-  integrity sha512-25reMgrT8PhJy0Ba0U7fMZD2oobS1FPWB9vQa0uBpJYIQYYuFXEHoqEkTqA/UzX+s9br3pmUVVY/TOsFt/x0oQ==
+  version "4.2.2"
+  resolved "https://registry.yarnpkg.com/merkle-patricia-tree/-/merkle-patricia-tree-4.2.2.tgz#6dec17855370172458244c2f42c989dd60b773a3"
+  integrity sha512-eqZYNTshcYx9aESkSPr71EqwsR/QmpnObDEV4iLxkt/x/IoLYZYjJvKY72voP/27Vy61iMOrfOG6jrn7ttXD+Q==
   dependencies:
     "@types/levelup" "^4.3.0"
-    ethereumjs-util "^7.1.0"
+    ethereumjs-util "^7.1.2"
     level-mem "^5.0.1"
     level-ws "^2.0.0"
     readable-stream "^3.6.0"
@@ -6041,17 +6285,17 @@ miller-rabin@^4.0.0:
     bn.js "^4.0.0"
     brorand "^1.0.1"
 
-mime-db@1.49.0:
-  version "1.49.0"
-  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.49.0.tgz#f3dfde60c99e9cf3bc9701d687778f537001cbed"
-  integrity sha512-CIc8j9URtOVApSFCQIF+VBkX1RwXp/oMMOrqdyXSBXq5RWNEsRfyj1kiRnQgmNXmHxPoFIxOroKA3zcU9P+nAA==
+mime-db@1.50.0:
+  version "1.50.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.50.0.tgz#abd4ac94e98d3c0e185016c67ab45d5fde40c11f"
+  integrity sha512-9tMZCDlYHqeERXEHO9f/hKfNXhre5dK2eE/krIvUjZbS2KPcqGDfNShIWS1uW9XOTKQKqK6qbeOci18rbfW77A==
 
 mime-types@^2.1.12, mime-types@^2.1.16, mime-types@~2.1.19, mime-types@~2.1.24:
-  version "2.1.32"
-  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.32.tgz#1d00e89e7de7fe02008db61001d9e02852670fd5"
-  integrity sha512-hJGaVS4G4c9TSMYh2n6SQAGrC4RnfU+daP8G7cSCmaqNjiOoUY0VHCMS42pxnQmVF1GWwFhbHWn3RIxCqTmZ9A==
+  version "2.1.33"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.33.tgz#1fa12a904472fafd068e48d9e8401f74d3f70edb"
+  integrity sha512-plLElXp7pRDd0bNZHw+nMd52vRYjLwQjygaNg7ddJ2uJtTlmnTCjWuPKxVu6//AdaRuME84SvLW91sIkBqGT0g==
   dependencies:
-    mime-db "1.49.0"
+    mime-db "1.50.0"
 
 mime@1.6.0:
   version "1.6.0"
@@ -6063,6 +6307,11 @@ mimic-fn@^1.0.0:
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
   integrity sha512-jf84uxzwiuiIVKiOLpfYk7N46TSy8ubTonmneY9vrpHNAnp0QBt2BxWV9dO3/j+BoVAb+a5G6YDPW3M5HOdMWQ==
 
+mimic-fn@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-2.1.0.tgz#7ed2c2ccccaf84d3ffcb7a69b57711fc2083401b"
+  integrity sha512-OqbOk5oEQeAZ8WXWydlu9HJjz9WVdEIvamMCcXmuqUYjTknH/sqsWvhQ3vgwKFRR1HpjvNBKQ37nbJgYzGqGcg==
+
 mimic-response@^1.0.0, mimic-response@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/mimic-response/-/mimic-response-1.0.1.tgz#4923538878eef42063cb8a3e3b0798781487ab1b"
@@ -6085,7 +6334,7 @@ minimalistic-crypto-utils@^1.0.1:
   resolved "https://registry.yarnpkg.com/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz#f6c00c1c0b082246e5c4d99dfb8c7c083b2b582a"
   integrity sha1-9sAMHAsIIkblxNmd+4x8CDsrWCo=
 
-minimatch@3.0.4, minimatch@^3.0.4:
+"minimatch@2 || 3", minimatch@3.0.4, minimatch@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
   integrity sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==
@@ -6132,7 +6381,7 @@ mkdirp@*, mkdirp@^1.0.4:
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-1.0.4.tgz#3eb5ed62622756d79a5f0e2a221dfebad75c2f7e"
   integrity sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw==
 
-mkdirp@0.5.5, mkdirp@^0.5.1, mkdirp@^0.5.5:
+mkdirp@0.5.5, mkdirp@0.5.x, mkdirp@^0.5.1, mkdirp@^0.5.5:
   version "0.5.5"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.5.tgz#d91cefd62d1436ca0f41620e251288d420099def"
   integrity sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==
@@ -6283,6 +6532,11 @@ negotiator@0.6.2:
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.2.tgz#feacf7ccf525a77ae9634436a64883ffeca346fb"
   integrity sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw==
 
+neo-async@^2.6.0:
+  version "2.6.2"
+  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.2.tgz#b4aafb93e3aeb2d8174ca53cf163ab7d7308305f"
+  integrity sha512-Yd3UES5mWCSqR+qNT93S3UoYUkqAZ9lLg8a7g9rimsWmYGK8cVToA4/sF3RrshdyV3sAGMXVUmpMYOw+dLpOuw==
+
 next-tick@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/next-tick/-/next-tick-1.0.0.tgz#ca86d1fe8828169b0120208e3dc8424b9db8342c"
@@ -6298,6 +6552,13 @@ node-addon-api@^2.0.0:
   resolved "https://registry.yarnpkg.com/node-addon-api/-/node-addon-api-2.0.2.tgz#432cfa82962ce494b132e9d72a15b29f71ff5d32"
   integrity sha512-Ntyt4AIXyaLIuMHF6IOoTakB3K+RWxwtsHNRxllEoA6vPwP9o4866g6YWDLUdnucilZhmkxiHwHr11gAENw+QA==
 
+node-emoji@^1.10.0:
+  version "1.11.0"
+  resolved "https://registry.yarnpkg.com/node-emoji/-/node-emoji-1.11.0.tgz#69a0150e6946e2f115e9d7ea4df7971e2628301c"
+  integrity sha512-wo2DpQkQp7Sjm2A0cq+sN7EHKO6Sl0ctXeBdFZrL9T9+UywORbufTcTZxom8YqpLQt/FqNMUkOpkZrJVYSKD3A==
+  dependencies:
+    lodash "^4.17.21"
+
 node-environment-flags@1.0.6:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/node-environment-flags/-/node-environment-flags-1.0.6.tgz#a30ac13621f6f7d674260a54dede048c3982c088"
@@ -6326,7 +6587,7 @@ node-fetch@~1.7.1:
     encoding "^0.1.11"
     is-stream "^1.0.1"
 
-node-gyp-build@^4.2.0:
+node-gyp-build@^4.2.0, node-gyp-build@^4.3.0:
   version "4.3.0"
   resolved "https://registry.yarnpkg.com/node-gyp-build/-/node-gyp-build-4.3.0.tgz#9f256b03e5826150be39c764bf51e993946d71a3"
   integrity sha512-iWjXZvmboq0ja1pUGULQBexmxq8CV4xBhX7VDOTbL7ZR4FOowwY/VOtRxBN/yKxmdGoIp4j5ysNT4u3S2pDQ3Q==
@@ -6336,6 +6597,13 @@ nofilter@^1.0.4:
   resolved "https://registry.yarnpkg.com/nofilter/-/nofilter-1.0.4.tgz#78d6f4b6a613e7ced8b015cec534625f7667006e"
   integrity sha512-N8lidFp+fCz+TD51+haYdbDGrcBWwuHX40F5+z0qkUjMJ5Tp+rdSuAkMJ9N9eoolDlEVTf6u5icM+cNKkKW2mA==
 
+nopt@3.x:
+  version "3.0.6"
+  resolved "https://registry.yarnpkg.com/nopt/-/nopt-3.0.6.tgz#c6465dbf08abcd4db359317f79ac68a646b28ff9"
+  integrity sha1-xkZdvwirzU2zWTF/eaxopkayj/k=
+  dependencies:
+    abbrev "1"
+
 normalize-package-data@^2.3.2:
   version "2.5.0"
   resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.5.0.tgz#e66db1838b200c1dfc233225d12cb36520e234a8"
@@ -6356,6 +6624,13 @@ normalize-url@^4.1.0:
   resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-4.5.1.tgz#0dd90cf1288ee1d1313b87081c9a5932ee48518a"
   integrity sha512-9UZCFRHQdNrfTpGg8+1INIg93B6zE0aXMVFkw1WFwvO4SlZywU6aLg5Of0Ap/PgcbSw4LNxvMWXMeugwMCX0AA==
 
+npm-run-path@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/npm-run-path/-/npm-run-path-2.0.2.tgz#35a9232dfa35d7067b4cb2ddf2357b1871536c5f"
+  integrity sha1-NakjLfo11wZ7TLLd8jV7GHFTbF8=
+  dependencies:
+    path-key "^2.0.0"
+
 number-is-nan@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
@@ -6439,13 +6714,13 @@ object.assign@^4.1.2:
     object-keys "^1.1.1"
 
 object.getownpropertydescriptors@^2.0.3, object.getownpropertydescriptors@^2.1.1:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/object.getownpropertydescriptors/-/object.getownpropertydescriptors-2.1.2.tgz#1bd63aeacf0d5d2d2f31b5e393b03a7c601a23f7"
-  integrity sha512-WtxeKSzfBjlzL+F9b7M7hewDzMwy+C8NRssHd1YrNlzHzIDrXcXiNOMrezdAEM4UXixgV+vvnyBeN7Rygl2ttQ==
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/object.getownpropertydescriptors/-/object.getownpropertydescriptors-2.1.3.tgz#b223cf38e17fefb97a63c10c91df72ccb386df9e"
+  integrity sha512-VdDoCwvJI4QdC6ndjpqFmoL3/+HxffFBbcJzKi5hwLLqqx3mdbedRpfZDdK0SrOSauj8X4GzBvnDZl4vTN7dOw==
   dependencies:
     call-bind "^1.0.2"
     define-properties "^1.1.3"
-    es-abstract "^1.18.0-next.2"
+    es-abstract "^1.19.1"
 
 object.pick@^1.3.0:
   version "1.3.0"
@@ -6475,6 +6750,13 @@ oboe@2.1.4:
   dependencies:
     http-https "^1.0.0"
 
+oboe@2.1.5:
+  version "2.1.5"
+  resolved "https://registry.yarnpkg.com/oboe/-/oboe-2.1.5.tgz#5554284c543a2266d7a38f17e073821fbde393cd"
+  integrity sha1-VVQoTFQ6ImbXo48X4HOCH73jk80=
+  dependencies:
+    http-https "^1.0.0"
+
 on-finished@~2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/on-finished/-/on-finished-2.3.0.tgz#20f1336481b083cd75337992a16971aa2d906947"
@@ -6482,7 +6764,7 @@ on-finished@~2.3.0:
   dependencies:
     ee-first "1.1.1"
 
-once@^1.3.0, once@^1.3.1, once@^1.4.0:
+once@1.x, once@^1.3.0, once@^1.3.1, once@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
   integrity sha1-WDsap3WWHUsROsF9nFC6753Xa9E=
@@ -6504,7 +6786,7 @@ open@^7.4.2:
     is-docker "^2.0.0"
     is-wsl "^2.1.1"
 
-optionator@^0.8.2:
+optionator@^0.8.1, optionator@^0.8.2:
   version "0.8.3"
   resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.8.3.tgz#84fa1d036fe9d3c7e21d99884b601167ec8fb495"
   integrity sha512-+IW9pACdk3XWmmTXG8m3upGUJst5XRGzxMRjXzAuJ1XnIFNvfhjjIuYkDvysnPQ7qzqVzLt78BCruntqRhWQbA==
@@ -6528,6 +6810,15 @@ os-locale@^1.4.0:
   dependencies:
     lcid "^1.0.0"
 
+os-locale@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-3.1.0.tgz#a802a6ee17f24c10483ab9935719cef4ed16bf1a"
+  integrity sha512-Z8l3R4wYWM40/52Z+S265okfFj8Kt2cC2MKY+xNi3kFs+XGI7WXu/I309QQQYbRW4ijiZ+yxs9pqEhJh0DqW3Q==
+  dependencies:
+    execa "^1.0.0"
+    lcid "^2.0.0"
+    mem "^4.0.0"
+
 os-tmpdir@^1.0.1, os-tmpdir@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
@@ -6543,11 +6834,21 @@ p-cancelable@^1.0.0:
   resolved "https://registry.yarnpkg.com/p-cancelable/-/p-cancelable-1.1.0.tgz#d078d15a3af409220c886f1d9a0ca2e441ab26cc"
   integrity sha512-s73XxOZ4zpt1edZYZzvhqFa6uvQc1vwUa0K0BdtIZgQMAJj9IbebH+JkgKZc9h+B05PKHLOTl4ajG1BmNrVZlw==
 
+p-defer@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/p-defer/-/p-defer-1.0.0.tgz#9f6eb182f6c9aa8cd743004a7d4f96b196b0fb0c"
+  integrity sha1-n26xgvbJqozXQwBKfU+WsZaw+ww=
+
 p-finally@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/p-finally/-/p-finally-1.0.0.tgz#3fbcfb15b899a44123b34b6dcc18b724336a2cae"
   integrity sha1-P7z7FbiZpEEjs0ttzBi3JDNqLK4=
 
+p-is-promise@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/p-is-promise/-/p-is-promise-2.1.0.tgz#918cebaea248a62cf7ffab8e3bca8c5f882fc42e"
+  integrity sha512-Y3W0wlRPK8ZMRbNq97l4M5otioeA5lm1z7bkNkxCka8HSPjR0xRWmpCmc9utiaLP9Jb1eD8BgeIxTW4AIF45Pg==
+
 p-limit@^1.1.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-1.3.0.tgz#b86bd5f0c25690911c7590fcbfc2010d54b3ccb8"
@@ -6710,7 +7011,7 @@ path-is-inside@^1.0.2:
   resolved "https://registry.yarnpkg.com/path-is-inside/-/path-is-inside-1.0.2.tgz#365417dede44430d1c11af61027facf074bdfc53"
   integrity sha1-NlQX3t5EQw0cEa9hAn+s8HS9/FM=
 
-path-key@^2.0.1:
+path-key@^2.0.0, path-key@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
   integrity sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=
@@ -6770,6 +7071,11 @@ pify@^2.0.0, pify@^2.3.0:
   resolved "https://registry.yarnpkg.com/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
   integrity sha1-7RQaasBDqEnqWISY59yosVMw6Qw=
 
+pify@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/pify/-/pify-4.0.1.tgz#4b2cd25c50d598735c50292224fd8c6df41e3231"
+  integrity sha512-uB80kBFb/tfd68bVleG9T5GGsGPjJrLAUpR5PZIrhBnIaRTQRjqdJSsIKkOP6OAIFbj7GOrcudc5pNjZ+geV2g==
+
 pinkie-promise@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/pinkie-promise/-/pinkie-promise-2.0.1.tgz#2135d6dfa7a358c069ac9b178776288228450ffa"
@@ -7143,6 +7449,20 @@ readdirp@~3.6.0:
   dependencies:
     picomatch "^2.2.1"
 
+rechoir@^0.6.2:
+  version "0.6.2"
+  resolved "https://registry.yarnpkg.com/rechoir/-/rechoir-0.6.2.tgz#85204b54dba82d5742e28c96756ef43af50e3384"
+  integrity sha1-hSBLVNuoLVdC4oyWdW70OvUOM4Q=
+  dependencies:
+    resolve "^1.1.6"
+
+recursive-readdir@^2.2.2:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/recursive-readdir/-/recursive-readdir-2.2.2.tgz#9946fb3274e1628de6e36b2f6714953b4845094f"
+  integrity sha512-nRCcW9Sj7NuZwa2XvH9co8NPeXUBhZP7CRKJtU+cS6PW9FpCIFoI5ib0NT1ZrbNuPoRy0ylyCaUL8Gih4LSyFg==
+  dependencies:
+    minimatch "3.0.4"
+
 regenerate@^1.2.1:
   version "1.4.2"
   resolved "https://registry.yarnpkg.com/regenerate/-/regenerate-1.4.2.tgz#b9346d8827e8f5a32f7ba29637d398b69014848a"
@@ -7322,6 +7642,11 @@ resolve-url@^0.2.1:
   resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
   integrity sha1-LGN/53yJOv0qZj/iGqkIAGjiBSo=
 
+resolve@1.1.x:
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
+  integrity sha1-IDEU2CrSxe2ejgQRs5ModeiJ6Xs=
+
 resolve@1.17.0:
   version "1.17.0"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.17.0.tgz#b25941b54968231cc2d1bb76a79cb7f2c0bf8444"
@@ -7329,7 +7654,7 @@ resolve@1.17.0:
   dependencies:
     path-parse "^1.0.6"
 
-resolve@^1.10.0, resolve@^1.20.0, resolve@^1.8.1, resolve@~1.20.0:
+resolve@^1.1.6, resolve@^1.10.0, resolve@^1.20.0, resolve@^1.8.1, resolve@~1.20.0:
   version "1.20.0"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.20.0.tgz#629a013fb3f70755d6f0b7935cc1c2c5378b1975"
   integrity sha512-wENBPt4ySzg4ybFQW2TT1zMQucPK95HSh/nq2CFTZVOGut2+pQvSsgtda4d26YrYcr067wjbmzOG8byDPBX63A==
@@ -7392,11 +7717,11 @@ ripemd160@^2.0.0, ripemd160@^2.0.1:
     inherits "^2.0.1"
 
 rlp@^2.0.0, rlp@^2.2.1, rlp@^2.2.2, rlp@^2.2.3, rlp@^2.2.4:
-  version "2.2.6"
-  resolved "https://registry.yarnpkg.com/rlp/-/rlp-2.2.6.tgz#c80ba6266ac7a483ef1e69e8e2f056656de2fb2c"
-  integrity sha512-HAfAmL6SDYNWPUOJNrM500x4Thn4PZsEy5pijPh40U9WfNk0z15hUYzO9xVIMAdIHdFtD8CBDHd75Td1g36Mjg==
+  version "2.2.7"
+  resolved "https://registry.yarnpkg.com/rlp/-/rlp-2.2.7.tgz#33f31c4afac81124ac4b283e2bd4d9720b30beaf"
+  integrity sha512-d5gdPmgQ0Z+AklL2NVXr/IoSjNZFfTVvQWzL/AM2AOcSzYP2xjlb0AC8YyCLc41MSNf6P6QVtjgPdmVtzb+4lQ==
   dependencies:
-    bn.js "^4.11.1"
+    bn.js "^5.2.0"
 
 run-async@^2.2.0:
   version "2.4.1"
@@ -7451,6 +7776,26 @@ safe-regex@^1.1.0:
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
   integrity sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==
 
+sc-istanbul@^0.4.5:
+  version "0.4.6"
+  resolved "https://registry.yarnpkg.com/sc-istanbul/-/sc-istanbul-0.4.6.tgz#cf6784355ff2076f92d70d59047d71c13703e839"
+  integrity sha512-qJFF/8tW/zJsbyfh/iT/ZM5QNHE3CXxtLJbZsL+CzdJLBsPD7SedJZoUA4d8iAcN2IoMp/Dx80shOOd2x96X/g==
+  dependencies:
+    abbrev "1.0.x"
+    async "1.x"
+    escodegen "1.8.x"
+    esprima "2.7.x"
+    glob "^5.0.15"
+    handlebars "^4.0.1"
+    js-yaml "3.x"
+    mkdirp "0.5.x"
+    nopt "3.x"
+    once "1.x"
+    resolve "1.1.x"
+    supports-color "^3.1.0"
+    which "^1.1.1"
+    wordwrap "^1.0.0"
+
 scrypt-js@2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/scrypt-js/-/scrypt-js-2.0.4.tgz#32f8c5149f0797672e551c07e230f834b6af5f16"
@@ -7516,7 +7861,7 @@ semver@^6.3.0:
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
   integrity sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==
 
-semver@^7.3.2, semver@^7.3.5:
+semver@^7.3.2, semver@^7.3.4, semver@^7.3.5:
   version "7.3.5"
   resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.5.tgz#0b621c879348d8998e4b0e4be94b3f12e6018ef7"
   integrity sha512-PoeGJYh8HK4BTO/a9Tf6ZG3veo/A7ZVsYrSA6J8ny9nb3B1VrpkuN+z9OE5wfE5p6H4LchYZsegiQgbJD94ZFQ==
@@ -7631,6 +7976,15 @@ shebang-regex@^1.0.0:
   resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
   integrity sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=
 
+shelljs@^0.8.3:
+  version "0.8.4"
+  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.4.tgz#de7684feeb767f8716b326078a8a00875890e3c2"
+  integrity sha512-7gk3UZ9kOfPLIAbslLzyWeGiEqx9e3rxwZM0KE6EL8GlGwjym9Mrlx5/p33bWTu9YG6vcS4MBxYZDHYr5lr8BQ==
+  dependencies:
+    glob "^7.0.0"
+    interpret "^1.0.0"
+    rechoir "^0.6.2"
+
 side-channel@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/side-channel/-/side-channel-1.0.4.tgz#efce5c8fdc104ee751b25c58d4290011fa5ea2cf"
@@ -7640,10 +7994,10 @@ side-channel@^1.0.4:
     get-intrinsic "^1.0.2"
     object-inspect "^1.9.0"
 
-signal-exit@^3.0.2:
-  version "3.0.4"
-  resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.4.tgz#366a4684d175b9cab2081e3681fda3747b6c51d7"
-  integrity sha512-rqYhcAnZ6d/vTPGghdrw7iumdcbXpsk1b8IG/rz+VWV51DM0p7XCtMoJ3qhPLIbp3tvyt3pKRbaaEMZYpHto8Q==
+signal-exit@^3.0.0, signal-exit@^3.0.2:
+  version "3.0.5"
+  resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.5.tgz#9e3e8cc0c75a99472b44321033a7702e7738252f"
+  integrity sha512-KWcOiKeQj6ZyXx7zq4YxSMgHRlod4czeBQZrPb8OKcohcqAXShm7E20kEMle9WBt26hFcAf0qLOcp5zmY7kOqQ==
 
 simple-concat@^1.0.0:
   version "1.0.1"
@@ -7787,6 +8141,31 @@ solidity-comments-extractor@^0.0.7:
   resolved "https://registry.yarnpkg.com/solidity-comments-extractor/-/solidity-comments-extractor-0.0.7.tgz#99d8f1361438f84019795d928b931f4e5c39ca19"
   integrity sha512-wciNMLg/Irp8OKGrh3S2tfvZiZ0NEyILfcRCXCD4mp7SgK/i9gzLfhY2hY7VMCQJ3kH9UB9BzNdibIVMchzyYw==
 
+solidity-coverage@^0.7.17:
+  version "0.7.17"
+  resolved "https://registry.yarnpkg.com/solidity-coverage/-/solidity-coverage-0.7.17.tgz#5139de8f6666d4755d88f453d8e35632a7bb3444"
+  integrity sha512-Erw2hd2xdACAvDX8jUdYkmgJlIIazGznwDJA5dhRaw4def2SisXN9jUjneeyOZnl/E7j6D3XJYug4Zg9iwodsg==
+  dependencies:
+    "@solidity-parser/parser" "^0.13.2"
+    "@truffle/provider" "^0.2.24"
+    chalk "^2.4.2"
+    death "^1.1.0"
+    detect-port "^1.3.0"
+    fs-extra "^8.1.0"
+    ganache-cli "^6.12.2"
+    ghost-testrpc "^0.0.2"
+    global-modules "^2.0.0"
+    globby "^10.0.1"
+    jsonschema "^1.2.4"
+    lodash "^4.17.15"
+    node-emoji "^1.10.0"
+    pify "^4.0.1"
+    recursive-readdir "^2.2.2"
+    sc-istanbul "^0.4.5"
+    semver "^7.3.4"
+    shelljs "^0.8.3"
+    web3-utils "^1.3.0"
+
 source-map-resolve@^0.5.0:
   version "0.5.3"
   resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.5.3.tgz#190866bece7553e1f8f267a2ee82c606b5509a1a"
@@ -7831,11 +8210,18 @@ source-map@^0.5.6, source-map@^0.5.7:
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
   integrity sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=
 
-source-map@^0.6.0:
+source-map@^0.6.0, source-map@^0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
   integrity sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==
 
+source-map@~0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.2.0.tgz#dab73fbcfc2ba819b4de03bd6f6eaa48164b3f9d"
+  integrity sha1-2rc/vPwrqBm03gO9b26qSBZLP50=
+  dependencies:
+    amdefine ">=0.0.4"
+
 spdx-correct@^3.0.0:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-3.1.1.tgz#dece81ac9c1e6713e5f7d1b6f17d468fa53d89a9"
@@ -7963,13 +8349,13 @@ string-width@^4.2.2:
     strip-ansi "^6.0.1"
 
 string.prototype.trim@~1.2.4:
-  version "1.2.4"
-  resolved "https://registry.yarnpkg.com/string.prototype.trim/-/string.prototype.trim-1.2.4.tgz#6014689baf5efaf106ad031a5fa45157666ed1bd"
-  integrity sha512-hWCk/iqf7lp0/AgTF7/ddO1IWtSNPASjlzCicV5irAVdE1grjsneK26YG6xACMBEdCvO8fUST0UzDMh/2Qy+9Q==
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/string.prototype.trim/-/string.prototype.trim-1.2.5.tgz#a587bcc8bfad8cb9829a577f5de30dd170c1682c"
+  integrity sha512-Lnh17webJVsD6ECeovpVN17RlAKjmz4rF9S+8Y45CkMc/ufVpTkU3vZIyIC7sllQ1FCvObZnnCdNs/HXTUOTlg==
   dependencies:
     call-bind "^1.0.2"
     define-properties "^1.1.3"
-    es-abstract "^1.18.0-next.2"
+    es-abstract "^1.19.1"
 
 string.prototype.trimend@^1.0.4:
   version "1.0.4"
@@ -8046,6 +8432,11 @@ strip-bom@^3.0.0:
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-3.0.0.tgz#2334c18e9c759f7bdd56fdef7e9ae3d588e68ed3"
   integrity sha1-IzTBjpx1n3vdVv3vfprj1YjmjtM=
 
+strip-eof@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/strip-eof/-/strip-eof-1.0.0.tgz#bb43ff5598a6eb05d89b59fcd129c983313606bf"
+  integrity sha1-u0P/VZim6wXYm1n80SnJgzE2Br8=
+
 strip-hex-prefix@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/strip-hex-prefix/-/strip-hex-prefix-1.0.0.tgz#0c5f155fef1151373377de9dbb588da05500e36f"
@@ -8070,6 +8461,13 @@ supports-color@^2.0.0:
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
   integrity sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=
 
+supports-color@^3.1.0:
+  version "3.2.3"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-3.2.3.tgz#65ac0504b3954171d8a64946b2ae3cbb8a5f54f6"
+  integrity sha1-ZawFBLOVQXHYpklGsq48u4pfVPY=
+  dependencies:
+    has-flag "^1.0.0"
+
 supports-color@^5.3.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.5.0.tgz#e2e69a44ac8772f78a1ec0b35b689df6530efc8f"
@@ -8322,11 +8720,11 @@ ts-generator@^0.1.1:
     ts-essentials "^1.0.0"
 
 ts-node@^10.2.1:
-  version "10.2.1"
-  resolved "https://registry.yarnpkg.com/ts-node/-/ts-node-10.2.1.tgz#4cc93bea0a7aba2179497e65bb08ddfc198b3ab5"
-  integrity sha512-hCnyOyuGmD5wHleOQX6NIjJtYVIO8bPP8F2acWkB4W06wdlkgyvJtubO/I9NkI88hCFECbsEgoLc0VNkYmcSfw==
+  version "10.3.1"
+  resolved "https://registry.yarnpkg.com/ts-node/-/ts-node-10.3.1.tgz#739b42839b56d1a3c85026994af7045b2fccc6f5"
+  integrity sha512-Yw3W2mYzhHfCHOICGNJqa0i+rbL0rAyg7ZIHxU+K4pgY8gd2Lh1j+XbHCusJMykbj6RZMJVOY0MlHVd+GOivcw==
   dependencies:
-    "@cspotcode/source-map-support" "0.6.1"
+    "@cspotcode/source-map-support" "0.7.0"
     "@tsconfig/node10" "^1.0.7"
     "@tsconfig/node12" "^1.0.7"
     "@tsconfig/node14" "^1.0.0"
@@ -8442,9 +8840,9 @@ typechain@^3.0.0:
     ts-generator "^0.1.1"
 
 typechain@^5.1.2:
-  version "5.1.2"
-  resolved "https://registry.yarnpkg.com/typechain/-/typechain-5.1.2.tgz#c8784d6155a8e69397ca47f438a3b4fb2aa939da"
-  integrity sha512-FuaCxJd7BD3ZAjVJoO+D6TnqKey3pQdsqOBsC83RKYWKli5BDhdf0TPkwfyjt20TUlZvOzJifz+lDwXsRkiSKA==
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/typechain/-/typechain-5.2.0.tgz#10525a44773a34547eb2eed8978cb72c0a39a0f4"
+  integrity sha512-0INirvQ+P+MwJOeMct+WLkUE4zov06QxC96D+i3uGFEHoiSkZN70MKDQsaj8zkL86wQwByJReI2e7fOUwECFuw==
   dependencies:
     "@types/prettier" "^2.1.1"
     command-line-args "^4.0.7"
@@ -8470,9 +8868,9 @@ typedarray@^0.0.6:
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
 typescript@^4.4.3:
-  version "4.4.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.4.3.tgz#bdc5407caa2b109efd4f82fe130656f977a29324"
-  integrity sha512-4xfscpisVgqqDfPaJo5vkd+Qd/ItkoagnHpufr+i2QCHBsNYp+G7UAoyFl8aPtx879u38wPV65rZ8qbGZijalA==
+  version "4.4.4"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.4.4.tgz#2cd01a1a1f160704d3101fd5a58ff0f9fcb8030c"
+  integrity sha512-DqGhF5IKoBl8WNf8C1gu8q0xZSInh9j1kJJMqT3a94w1JzVaBU4EXOSMrz9yDqMT0xt3selp83fuFMQ0uzv6qA==
 
 typewise-core@^1.2, typewise-core@^1.2.0:
   version "1.2.0"
@@ -8496,6 +8894,11 @@ typical@^2.6.0, typical@^2.6.1:
   resolved "https://registry.yarnpkg.com/typical/-/typical-2.6.1.tgz#5c080e5d661cbbe38259d2e70a3c7253e873881d"
   integrity sha1-XAgOXWYcu+OCWdLnCjxyU+hziB0=
 
+uglify-js@^3.1.4:
+  version "3.14.2"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.14.2.tgz#d7dd6a46ca57214f54a2d0a43cad0f35db82ac99"
+  integrity sha512-rtPMlmcO4agTUfz10CbgJ1k6UAoXM2gWb3GoMPPZB/+/Ackf8lNWk11K4rYi2D0apgoFRLtQOZhb+/iGNJq26A==
+
 ultron@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.1.1.tgz#9fe1536a10a664a65266a1e3ccf85fd36302bc9c"
@@ -8604,11 +9007,11 @@ use@^3.1.0:
   integrity sha512-cwESVXlO3url9YWlFW/TA9cshCEhtu7IKJ/p5soJ/gGpj7vbvFrAY/eIioQ6Dw23KjZhYgiIo8HOs1nQ2vr/oQ==
 
 utf-8-validate@^5.0.2:
-  version "5.0.6"
-  resolved "https://registry.yarnpkg.com/utf-8-validate/-/utf-8-validate-5.0.6.tgz#e1b3e0a5cc8648a3b44c1799fbb170d1aaaffe80"
-  integrity sha512-hoY0gOf9EkCw+nimK21FVKHUIG1BMqSiRwxB/q3A9yKZOrOI99PP77BxmarDqWz6rG3vVYiBWfhG8z2Tl+7fZA==
+  version "5.0.7"
+  resolved "https://registry.yarnpkg.com/utf-8-validate/-/utf-8-validate-5.0.7.tgz#c15a19a6af1f7ad9ec7ddc425747ca28c3644922"
+  integrity sha512-vLt1O5Pp+flcArHGIyKEQq883nBt8nN8tVBcoL0qUXj2XT1n7p70yGIq2VK98I5FdZ1YHc0wk/koOnHjnXWk1Q==
   dependencies:
-    node-gyp-build "^4.2.0"
+    node-gyp-build "^4.3.0"
 
 utf8@3.0.0, utf8@^3.0.0:
   version "3.0.0"
@@ -8631,6 +9034,18 @@ util.promisify@^1.0.0, util.promisify@^1.0.1:
     has-symbols "^1.0.1"
     object.getownpropertydescriptors "^2.1.1"
 
+util@^0.12.0:
+  version "0.12.4"
+  resolved "https://registry.yarnpkg.com/util/-/util-0.12.4.tgz#66121a31420df8f01ca0c464be15dfa1d1850253"
+  integrity sha512-bxZ9qtSlGUWSOy9Qa9Xgk11kSslpuZwaxCg4sNIDj6FLucDab2JxnHwyNTCpHMtK1MjoQiWQ6DiUMZYbSrO+Sw==
+  dependencies:
+    inherits "^2.0.3"
+    is-arguments "^1.0.4"
+    is-generator-function "^1.0.7"
+    is-typed-array "^1.1.3"
+    safe-buffer "^5.1.2"
+    which-typed-array "^1.1.2"
+
 utils-merge@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
@@ -8688,6 +9103,15 @@ web3-bzz@1.2.11:
     swarm-js "^0.1.40"
     underscore "1.9.1"
 
+web3-bzz@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-bzz/-/web3-bzz-1.5.3.tgz#e36456905ce051138f9c3ce3623cbc73da088c2b"
+  integrity sha512-SlIkAqG0eS6cBS9Q2eBOTI1XFzqh83RqGJWnyrNZMDxUwsTVHL+zNnaPShVPvrWQA1Ub5b0bx1Kc5+qJVxsTJg==
+  dependencies:
+    "@types/node" "^12.12.6"
+    got "9.6.0"
+    swarm-js "^0.1.40"
+
 web3-core-helpers@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-core-helpers/-/web3-core-helpers-1.2.11.tgz#84c681ed0b942c0203f3b324a245a127e8c67a99"
@@ -8697,6 +9121,14 @@ web3-core-helpers@1.2.11:
     web3-eth-iban "1.2.11"
     web3-utils "1.2.11"
 
+web3-core-helpers@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-core-helpers/-/web3-core-helpers-1.5.3.tgz#099030235c477aadf39a94199ef40092151d563c"
+  integrity sha512-Ip1IjB3S8vN7Kf1PPjK41U5gskmMk6IJQlxIVuS8/1U7n/o0jC8krqtpRwiMfAgYyw3TXwBFtxSRTvJtnLyXZw==
+  dependencies:
+    web3-eth-iban "1.5.3"
+    web3-utils "1.5.3"
+
 web3-core-method@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-core-method/-/web3-core-method-1.2.11.tgz#f880137d1507a0124912bf052534f168b8d8fbb6"
@@ -8709,6 +9141,18 @@ web3-core-method@1.2.11:
     web3-core-subscriptions "1.2.11"
     web3-utils "1.2.11"
 
+web3-core-method@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-core-method/-/web3-core-method-1.5.3.tgz#6cff97ed19fe4ea2e9183d6f703823a079f5132c"
+  integrity sha512-8wJrwQ2qD9ibWieF9oHXwrJsUGrv3XAtEkNeyvyNMpktNTIjxJ2jaFGQUuLiyUrMubD18XXgLk4JS6PJU4Loeg==
+  dependencies:
+    "@ethereumjs/common" "^2.4.0"
+    "@ethersproject/transactions" "^5.0.0-beta.135"
+    web3-core-helpers "1.5.3"
+    web3-core-promievent "1.5.3"
+    web3-core-subscriptions "1.5.3"
+    web3-utils "1.5.3"
+
 web3-core-promievent@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-core-promievent/-/web3-core-promievent-1.2.11.tgz#51fe97ca0ddec2f99bf8c3306a7a8e4b094ea3cf"
@@ -8716,6 +9160,13 @@ web3-core-promievent@1.2.11:
   dependencies:
     eventemitter3 "4.0.4"
 
+web3-core-promievent@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-core-promievent/-/web3-core-promievent-1.5.3.tgz#3f11833c3dc6495577c274350b61144e0a4dba01"
+  integrity sha512-CFfgqvk3Vk6PIAxtLLuX+pOMozxkKCY+/GdGr7weMh033mDXEPvwyVjoSRO1PqIKj668/hMGQsVoIgbyxkJ9Mg==
+  dependencies:
+    eventemitter3 "4.0.4"
+
 web3-core-requestmanager@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-core-requestmanager/-/web3-core-requestmanager-1.2.11.tgz#fe6eb603fbaee18530293a91f8cf26d8ae28c45a"
@@ -8727,6 +9178,17 @@ web3-core-requestmanager@1.2.11:
     web3-providers-ipc "1.2.11"
     web3-providers-ws "1.2.11"
 
+web3-core-requestmanager@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-core-requestmanager/-/web3-core-requestmanager-1.5.3.tgz#b339525815fd40e3a2a81813c864ddc413f7b6f7"
+  integrity sha512-9k/Bze2rs8ONix5IZR+hYdMNQv+ark2Ek2kVcrFgWO+LdLgZui/rn8FikPunjE+ub7x7pJaKCgVRbYFXjo3ZWg==
+  dependencies:
+    util "^0.12.0"
+    web3-core-helpers "1.5.3"
+    web3-providers-http "1.5.3"
+    web3-providers-ipc "1.5.3"
+    web3-providers-ws "1.5.3"
+
 web3-core-subscriptions@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-core-subscriptions/-/web3-core-subscriptions-1.2.11.tgz#beca908fbfcb050c16f45f3f0f4c205e8505accd"
@@ -8736,6 +9198,14 @@ web3-core-subscriptions@1.2.11:
     underscore "1.9.1"
     web3-core-helpers "1.2.11"
 
+web3-core-subscriptions@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-core-subscriptions/-/web3-core-subscriptions-1.5.3.tgz#d7d69c4caad65074212028656e9dc56ca5c2159d"
+  integrity sha512-L2m9vG1iRN6thvmv/HQwO2YLhOQlmZU8dpLG6GSo9FBN14Uch868Swk0dYVr3rFSYjZ/GETevSXU+O+vhCummA==
+  dependencies:
+    eventemitter3 "4.0.4"
+    web3-core-helpers "1.5.3"
+
 web3-core@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-core/-/web3-core-1.2.11.tgz#1043cacc1becb80638453cc5b2a14be9050288a7"
@@ -8749,6 +9219,19 @@ web3-core@1.2.11:
     web3-core-requestmanager "1.2.11"
     web3-utils "1.2.11"
 
+web3-core@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-core/-/web3-core-1.5.3.tgz#59f8728b27c8305b349051326aa262b9b7e907bf"
+  integrity sha512-ACTbu8COCu+0eUNmd9pG7Q9EVsNkAg2w3Y7SqhDr+zjTgbSHZV01jXKlapm9z+G3AN/BziV3zGwudClJ4u4xXQ==
+  dependencies:
+    "@types/bn.js" "^4.11.5"
+    "@types/node" "^12.12.6"
+    bignumber.js "^9.0.0"
+    web3-core-helpers "1.5.3"
+    web3-core-method "1.5.3"
+    web3-core-requestmanager "1.5.3"
+    web3-utils "1.5.3"
+
 web3-eth-abi@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-eth-abi/-/web3-eth-abi-1.2.11.tgz#a887494e5d447c2926d557a3834edd66e17af9b0"
@@ -8758,6 +9241,14 @@ web3-eth-abi@1.2.11:
     underscore "1.9.1"
     web3-utils "1.2.11"
 
+web3-eth-abi@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-eth-abi/-/web3-eth-abi-1.5.3.tgz#5aea9394d797f99ca0d9bd40c3417eb07241c96c"
+  integrity sha512-i/qhuFsoNrnV130CSRYX/z4SlCfSQ4mHntti5yTmmQpt70xZKYZ57BsU0R29ueSQ9/P+aQrL2t2rqkQkAloUxg==
+  dependencies:
+    "@ethersproject/abi" "5.0.7"
+    web3-utils "1.5.3"
+
 web3-eth-accounts@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-eth-accounts/-/web3-eth-accounts-1.2.11.tgz#a9e3044da442d31903a7ce035a86d8fa33f90520"
@@ -8775,6 +9266,23 @@ web3-eth-accounts@1.2.11:
     web3-core-method "1.2.11"
     web3-utils "1.2.11"
 
+web3-eth-accounts@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-eth-accounts/-/web3-eth-accounts-1.5.3.tgz#076c816ff4d68c9dffebdc7fd2bfaddcfc163d77"
+  integrity sha512-pdGhXgeBaEJENMvRT6W9cmji3Zz/46ugFSvmnLLw79qi5EH7XJhKISNVb41eWCrs4am5GhI67GLx5d2s2a72iw==
+  dependencies:
+    "@ethereumjs/common" "^2.3.0"
+    "@ethereumjs/tx" "^3.2.1"
+    crypto-browserify "3.12.0"
+    eth-lib "0.2.8"
+    ethereumjs-util "^7.0.10"
+    scrypt-js "^3.0.1"
+    uuid "3.3.2"
+    web3-core "1.5.3"
+    web3-core-helpers "1.5.3"
+    web3-core-method "1.5.3"
+    web3-utils "1.5.3"
+
 web3-eth-contract@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-eth-contract/-/web3-eth-contract-1.2.11.tgz#917065902bc27ce89da9a1da26e62ef663663b90"
@@ -8790,6 +9298,20 @@ web3-eth-contract@1.2.11:
     web3-eth-abi "1.2.11"
     web3-utils "1.2.11"
 
+web3-eth-contract@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-eth-contract/-/web3-eth-contract-1.5.3.tgz#12b03a4a16ce583a945f874bea2ff2fb4c5b81ad"
+  integrity sha512-Gdlt1L6cdHe83k7SdV6xhqCytVtOZkjD0kY/15x441AuuJ4JLubCHuqu69k2Dr3tWifHYVys/vG8QE/W16syGg==
+  dependencies:
+    "@types/bn.js" "^4.11.5"
+    web3-core "1.5.3"
+    web3-core-helpers "1.5.3"
+    web3-core-method "1.5.3"
+    web3-core-promievent "1.5.3"
+    web3-core-subscriptions "1.5.3"
+    web3-eth-abi "1.5.3"
+    web3-utils "1.5.3"
+
 web3-eth-ens@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-eth-ens/-/web3-eth-ens-1.2.11.tgz#26d4d7f16d6cbcfff918e39832b939edc3162532"
@@ -8805,6 +9327,20 @@ web3-eth-ens@1.2.11:
     web3-eth-contract "1.2.11"
     web3-utils "1.2.11"
 
+web3-eth-ens@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-eth-ens/-/web3-eth-ens-1.5.3.tgz#ef6eee1ddf32b1ff9536fc7c599a74f2656bafe1"
+  integrity sha512-QmGFFtTGElg0E+3xfCIFhiUF+1imFi9eg/cdsRMUZU4F1+MZCC/ee+IAelYLfNTGsEslCqfAusliKOT9DdGGnw==
+  dependencies:
+    content-hash "^2.5.2"
+    eth-ens-namehash "2.0.8"
+    web3-core "1.5.3"
+    web3-core-helpers "1.5.3"
+    web3-core-promievent "1.5.3"
+    web3-eth-abi "1.5.3"
+    web3-eth-contract "1.5.3"
+    web3-utils "1.5.3"
+
 web3-eth-iban@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-eth-iban/-/web3-eth-iban-1.2.11.tgz#f5f73298305bc7392e2f188bf38a7362b42144ef"
@@ -8813,6 +9349,14 @@ web3-eth-iban@1.2.11:
     bn.js "^4.11.9"
     web3-utils "1.2.11"
 
+web3-eth-iban@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-eth-iban/-/web3-eth-iban-1.5.3.tgz#91b1475893a877b10eac1de5cce6eb379fb81b5d"
+  integrity sha512-vMzmGqolYZvRHwP9P4Nf6G8uYM5aTLlQu2a34vz78p0KlDC+eV1th3+90Qeaupa28EG7OO0IT1F0BejiIauOPw==
+  dependencies:
+    bn.js "^4.11.9"
+    web3-utils "1.5.3"
+
 web3-eth-personal@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-eth-personal/-/web3-eth-personal-1.2.11.tgz#a38b3942a1d87a62070ce0622a941553c3d5aa70"
@@ -8825,6 +9369,18 @@ web3-eth-personal@1.2.11:
     web3-net "1.2.11"
     web3-utils "1.2.11"
 
+web3-eth-personal@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-eth-personal/-/web3-eth-personal-1.5.3.tgz#4ebe09e9a77dd49d23d93b36b36cfbf4a6dae713"
+  integrity sha512-JzibJafR7ak/Icas8uvos3BmUNrZw1vShuNR5Cxjo+vteOC8XMqz1Vr7RH65B4bmlfb3bm9xLxetUHO894+Sew==
+  dependencies:
+    "@types/node" "^12.12.6"
+    web3-core "1.5.3"
+    web3-core-helpers "1.5.3"
+    web3-core-method "1.5.3"
+    web3-net "1.5.3"
+    web3-utils "1.5.3"
+
 web3-eth@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-eth/-/web3-eth-1.2.11.tgz#4c81fcb6285b8caf544058fba3ae802968fdc793"
@@ -8844,6 +9400,24 @@ web3-eth@1.2.11:
     web3-net "1.2.11"
     web3-utils "1.2.11"
 
+web3-eth@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-eth/-/web3-eth-1.5.3.tgz#d7d1ac7198f816ab8a2088c01e0bf1eda45862fe"
+  integrity sha512-saFurA1L23Bd7MEf7cBli6/jRdMhD4X/NaMiO2mdMMCXlPujoudlIJf+VWpRWJpsbDFdu7XJ2WHkmBYT5R3p1Q==
+  dependencies:
+    web3-core "1.5.3"
+    web3-core-helpers "1.5.3"
+    web3-core-method "1.5.3"
+    web3-core-subscriptions "1.5.3"
+    web3-eth-abi "1.5.3"
+    web3-eth-accounts "1.5.3"
+    web3-eth-contract "1.5.3"
+    web3-eth-ens "1.5.3"
+    web3-eth-iban "1.5.3"
+    web3-eth-personal "1.5.3"
+    web3-net "1.5.3"
+    web3-utils "1.5.3"
+
 web3-net@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-net/-/web3-net-1.2.11.tgz#eda68ef25e5cdb64c96c39085cdb74669aabbe1b"
@@ -8853,6 +9427,15 @@ web3-net@1.2.11:
     web3-core-method "1.2.11"
     web3-utils "1.2.11"
 
+web3-net@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-net/-/web3-net-1.5.3.tgz#545fee49b8e213b0c55cbe74ffd0295766057463"
+  integrity sha512-0W/xHIPvgVXPSdLu0iZYnpcrgNnhzHMC888uMlGP5+qMCt8VuflUZHy7tYXae9Mzsg1kxaJAS5lHVNyeNw4CoQ==
+  dependencies:
+    web3-core "1.5.3"
+    web3-core-method "1.5.3"
+    web3-utils "1.5.3"
+
 web3-provider-engine@14.2.1:
   version "14.2.1"
   resolved "https://registry.yarnpkg.com/web3-provider-engine/-/web3-provider-engine-14.2.1.tgz#ef351578797bf170e08d529cb5b02f8751329b95"
@@ -8887,6 +9470,14 @@ web3-providers-http@1.2.11:
     web3-core-helpers "1.2.11"
     xhr2-cookies "1.1.0"
 
+web3-providers-http@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-providers-http/-/web3-providers-http-1.5.3.tgz#74f170fc3d79eb7941d9fbc34e2a067d61ced0b2"
+  integrity sha512-5DpUyWGHtDAr2RYmBu34Fu+4gJuBAuNx2POeiJIooUtJ+Mu6pIx4XkONWH6V+Ez87tZAVAsFOkJRTYuzMr3rPw==
+  dependencies:
+    web3-core-helpers "1.5.3"
+    xhr2-cookies "1.1.0"
+
 web3-providers-ipc@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-providers-ipc/-/web3-providers-ipc-1.2.11.tgz#d16d6c9be1be6e0b4f4536c4acc16b0f4f27ef21"
@@ -8896,6 +9487,14 @@ web3-providers-ipc@1.2.11:
     underscore "1.9.1"
     web3-core-helpers "1.2.11"
 
+web3-providers-ipc@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-providers-ipc/-/web3-providers-ipc-1.5.3.tgz#4bd7f5e445c2f3c2595fce0929c72bb879320a3f"
+  integrity sha512-JmeAptugVpmXI39LGxUSAymx0NOFdgpuI1hGQfIhbEAcd4sv7fhfd5D+ZU4oLHbRI8IFr4qfGU0uhR8BXhDzlg==
+  dependencies:
+    oboe "2.1.5"
+    web3-core-helpers "1.5.3"
+
 web3-providers-ws@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-providers-ws/-/web3-providers-ws-1.2.11.tgz#a1dfd6d9778d840561d9ec13dd453046451a96bb"
@@ -8906,6 +9505,15 @@ web3-providers-ws@1.2.11:
     web3-core-helpers "1.2.11"
     websocket "^1.0.31"
 
+web3-providers-ws@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-providers-ws/-/web3-providers-ws-1.5.3.tgz#eec6cfb32bb928a4106de506f13a49070a21eabf"
+  integrity sha512-6DhTw4Q7nm5CFYEUHOJM0gAb3xFx+9gWpVveg3YxJ/ybR1BUvEWo3bLgIJJtX56cYX0WyY6DS35a7f0LOI1kVg==
+  dependencies:
+    eventemitter3 "4.0.4"
+    web3-core-helpers "1.5.3"
+    websocket "^1.0.32"
+
 web3-shh@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-shh/-/web3-shh-1.2.11.tgz#f5d086f9621c9a47e98d438010385b5f059fd88f"
@@ -8916,6 +9524,16 @@ web3-shh@1.2.11:
     web3-core-subscriptions "1.2.11"
     web3-net "1.2.11"
 
+web3-shh@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3-shh/-/web3-shh-1.5.3.tgz#3c04aa4cda9ba0b746d7225262401160f8e38b13"
+  integrity sha512-COfEXfsqoV/BkcsNLRxQqnWc1Teb8/9GxdGag5GtPC5gQC/vsN+7hYVJUwNxY9LtJPKYTij2DHHnx6UkITng+Q==
+  dependencies:
+    web3-core "1.5.3"
+    web3-core-method "1.5.3"
+    web3-core-subscriptions "1.5.3"
+    web3-net "1.5.3"
+
 web3-utils@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3-utils/-/web3-utils-1.2.11.tgz#af1942aead3fb166ae851a985bed8ef2c2d95a82"
@@ -8930,7 +9548,7 @@ web3-utils@1.2.11:
     underscore "1.9.1"
     utf8 "3.0.0"
 
-web3-utils@^1.0.0-beta.31:
+web3-utils@1.5.3:
   version "1.5.3"
   resolved "https://registry.yarnpkg.com/web3-utils/-/web3-utils-1.5.3.tgz#e914c9320cd663b2a09a5cb920ede574043eb437"
   integrity sha512-56nRgA+Ad9SEyCv39g36rTcr5fpsd4L9LgV3FK0aB66nAMazLAA6Qz4lH5XrUKPDyBIPGJIR+kJsyRtwcu2q1Q==
@@ -8943,6 +9561,19 @@ web3-utils@^1.0.0-beta.31:
     randombytes "^2.1.0"
     utf8 "3.0.0"
 
+web3-utils@^1.0.0-beta.31, web3-utils@^1.3.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/web3-utils/-/web3-utils-1.6.0.tgz#1975c5ee5b7db8a0836eb7004848a7cd962d1ddc"
+  integrity sha512-bgCAWAeQnJF035YTFxrcHJ5mGEfTi/McsjqldZiXRwlHK7L1PyOqvXiQLE053dlzvy1kdAxWl/sSSfLMyNUAXg==
+  dependencies:
+    bn.js "^4.11.9"
+    ethereum-bloom-filters "^1.0.6"
+    ethereumjs-util "^7.1.0"
+    ethjs-unit "0.1.6"
+    number-to-bn "1.7.0"
+    randombytes "^2.1.0"
+    utf8 "3.0.0"
+
 web3@1.2.11:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/web3/-/web3-1.2.11.tgz#50f458b2e8b11aa37302071c170ed61cff332975"
@@ -8956,6 +9587,19 @@ web3@1.2.11:
     web3-shh "1.2.11"
     web3-utils "1.2.11"
 
+web3@1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/web3/-/web3-1.5.3.tgz#11882679453c645bf33620fbc255a243343075aa"
+  integrity sha512-eyBg/1K44flfv0hPjXfKvNwcUfIVDI4NX48qHQe6wd7C8nPSdbWqo9vLy6ksZIt9NLa90HjI8HsGYgnMSUxn6w==
+  dependencies:
+    web3-bzz "1.5.3"
+    web3-core "1.5.3"
+    web3-eth "1.5.3"
+    web3-eth-personal "1.5.3"
+    web3-net "1.5.3"
+    web3-shh "1.5.3"
+    web3-utils "1.5.3"
+
 webidl-conversions@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-3.0.1.tgz#24534275e2a7bc6be7bc86611cc16ae0a5654871"
@@ -8973,7 +9617,7 @@ websocket@1.0.32:
     utf-8-validate "^5.0.2"
     yaeti "^0.0.6"
 
-websocket@^1.0.31:
+websocket@^1.0.31, websocket@^1.0.32:
   version "1.0.34"
   resolved "https://registry.yarnpkg.com/websocket/-/websocket-1.0.34.tgz#2bdc2602c08bf2c82253b730655c0ef7dcab3111"
   integrity sha512-PRDso2sGwF6kM75QykIesBijKSVceR6jL2G8NGYyq2XrItNC2P5/qL5XeR056GhA+Ly7JMFvJb9I312mJfmqnQ==
@@ -9019,7 +9663,19 @@ which-module@^2.0.0:
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
   integrity sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=
 
-which@1.3.1, which@^1.2.9:
+which-typed-array@^1.1.2:
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/which-typed-array/-/which-typed-array-1.1.7.tgz#2761799b9a22d4b8660b3c1b40abaa7739691793"
+  integrity sha512-vjxaB4nfDqwKI0ws7wZpxIlde1XrLX5uB0ZjpfshgmapJMD7jJWhZI+yToJTqaFByF0eNBcYxbjmCzoRP7CfEw==
+  dependencies:
+    available-typed-arrays "^1.0.5"
+    call-bind "^1.0.2"
+    es-abstract "^1.18.5"
+    foreach "^2.0.5"
+    has-tostringtag "^1.0.0"
+    is-typed-array "^1.1.7"
+
+which@1.3.1, which@^1.1.1, which@^1.2.9, which@^1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"
   integrity sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==
@@ -9043,6 +9699,11 @@ word-wrap@~1.2.3:
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
   integrity sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==
 
+wordwrap@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
+  integrity sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=
+
 wrap-ansi@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
@@ -9177,7 +9838,7 @@ yallist@^4.0.0:
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-4.0.0.tgz#9bb92790d9c0effec63be73519e11a35019a3a72"
   integrity sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==
 
-yargs-parser@13.1.2, yargs-parser@^13.1.2:
+yargs-parser@13.1.2, yargs-parser@^13.1.0, yargs-parser@^13.1.2:
   version "13.1.2"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-13.1.2.tgz#130f09702ebaeef2650d54ce6e3e5706f7a4fb38"
   integrity sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==
@@ -9202,6 +9863,23 @@ yargs-unparser@1.6.0:
     lodash "^4.17.15"
     yargs "^13.3.0"
 
+yargs@13.2.4:
+  version "13.2.4"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-13.2.4.tgz#0b562b794016eb9651b98bd37acf364aa5d6dc83"
+  integrity sha512-HG/DWAJa1PAnHT9JAhNa8AbAv3FPaiLzioSjCcmuXXhP8MlpHO5vwls4g4j6n30Z74GVQj8Xa62dWVx1QCGklg==
+  dependencies:
+    cliui "^5.0.0"
+    find-up "^3.0.0"
+    get-caller-file "^2.0.1"
+    os-locale "^3.1.0"
+    require-directory "^2.1.1"
+    require-main-filename "^2.0.0"
+    set-blocking "^2.0.0"
+    string-width "^3.0.0"
+    which-module "^2.0.0"
+    y18n "^4.0.0"
+    yargs-parser "^13.1.0"
+
 yargs@13.3.2, yargs@^13.3.0:
   version "13.3.2"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-13.3.2.tgz#ad7ffefec1aa59565ac915f82dccb38a9c31a2dd"