diff --git a/Pipfile.lock b/Pipfile.lock
index 107c5b6..a51d334 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -26,16 +26,16 @@
         },
         "asyncio-nats-client": {
             "hashes": [
-                "sha256:12ac47284b20bd0359ee9579972892c8d8a08d23c2bbcf6f637b6f2feff3aa4d"
+                "sha256:9ff7e3a386bcb49851062bc9f43c26d6ab9079e22014de946ccec7da570b445f"
             ],
-            "version": "==0.8.2"
+            "version": "==0.10.0"
         },
         "certifi": {
             "hashes": [
-                "sha256:59b7658e26ca9c7339e00f8f4636cdfe59d34fa37b9b04f6f9e9926b3cece1a5",
-                "sha256:b26104d6835d1f5e49452a26eb2ff87fe7090b89dfcaee5ea2212697e1e1d7ae"
+                "sha256:017c25db2a153ce562900032d5bc68e9f191e44e9a0f762f373977de9df1fbb3",
+                "sha256:25b64c7da4cd7479594d035c08c2d809eb4aab3a26e5a990ea98cc450c320f1f"
             ],
-            "version": "==2019.3.9"
+            "version": "==2019.11.28"
         },
         "chardet": {
             "hashes": [
@@ -46,148 +46,135 @@
         },
         "idna": {
             "hashes": [
-                "sha256:c357b3f628cf53ae2c4c05627ecc484553142ca23264e593d327bcde5e9c3407",
-                "sha256:ea8b7f6188e6fa117537c3df7da9fc686d485087abf6ac197f9c46432f7e4a3c"
+                "sha256:7588d1c14ae4c77d74036e8c22ff447b26d0fde8f007354fd48a7814db15b7cb",
+                "sha256:a068a21ceac8a4d63dbfd964670474107f541babbd2250d61922f029858365fa"
             ],
-            "version": "==2.8"
+            "version": "==2.9"
         },
         "numpy": {
             "hashes": [
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-                "sha256:2b0b118ff547fecabc247a2668f48f48b3b1f7d63676ebc5be7352a5fd9e85a5",
-                "sha256:3a0bd1edf64f6a911427b608a894111f9fcdb25284f724016f34a84c9a3a6ea9",
-                "sha256:3f25f6c7b0d000017e5ac55977a3999b0b1a74491eacb3c1aa716f0e01f6dcd1",
-                "sha256:4061c79ac2230594a7419151028e808239450e676c39e58302ad296232e3c2e8",
-                "sha256:560ceaa24f971ab37dede7ba030fc5d8fa173305d94365f814d9523ffd5d5916",
-                "sha256:62be044cd58da2a947b7e7b2252a10b42920df9520fc3d39f5c4c70d5460b8ba",
-                "sha256:6c692e3879dde0b67a9dc78f9bfb6f61c666b4562fd8619632d7043fb5b691b0",
-                "sha256:6f65e37b5a331df950ef6ff03bd4136b3c0bbcf44d4b8e99135d68a537711b5a",
-                "sha256:7a78cc4ddb253a55971115f8320a7ce28fd23a065fc33166d601f51760eecfa9",
-                "sha256:80a41edf64a3626e729a62df7dd278474fc1726836552b67a8c6396fd7e86760",
-                "sha256:893f4d75255f25a7b8516feb5766c6b63c54780323b9bd4bc51cdd7efc943c73",
-                "sha256:972ea92f9c1b54cc1c1a3d8508e326c0114aaf0f34996772a30f3f52b73b942f",
-                "sha256:9f1d4865436f794accdabadc57a8395bd3faa755449b4f65b88b7df65ae05f89",
-                "sha256:9f4cd7832b35e736b739be03b55875706c8c3e5fe334a06210f1a61e5c2c8ca5",
-                "sha256:adab43bf657488300d3aeeb8030d7f024fcc86e3a9b8848741ea2ea903e56610",
-                "sha256:bd2834d496ba9b1bdda3a6cf3de4dc0d4a0e7be306335940402ec95132ad063d",
-                "sha256:d20c0360940f30003a23c0adae2fe50a0a04f3e48dc05c298493b51fd6280197",
-                "sha256:d3b3ed87061d2314ff3659bb73896e622252da52558f2380f12c421fbdee3d89",
-                "sha256:dc235bf29a406dfda5790d01b998a1c01d7d37f449128c0b1b7d1c89a84fae8b",
-                "sha256:fb3c83554f39f48f3fa3123b9c24aecf681b1c289f9334f8215c1d3c8e2f6e5b"
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-            "version": "==1.16.2"
+                "sha256:1598a6de323508cfeed6b7cd6c4efb43324f4692e20d1f76e1feec7f59013448",
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+                "sha256:59ca9c6592da581a03d42cc4e270732552243dc45e87248aa8d636d53812f6a5",
+                "sha256:5e0feb76849ca3e83dd396254e47c7dba65b3fa9ed3df67c2556293ae3e16de3",
+                "sha256:6d205249a0293e62bbb3898c4c2e1ff8a22f98375a34775a259a0523111a8f6c",
+                "sha256:6fcc5a3990e269f86d388f165a089259893851437b904f422d301cdce4ff25c8",
+                "sha256:82847f2765835c8e5308f136bc34018d09b49037ec23ecc42b246424c767056b",
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+                "sha256:a1baa1dc8ecd88fb2d2a651671a84b9938461e8a8eed13e2f0a812a94084d1fa",
+                "sha256:a244f7af80dacf21054386539699ce29bcc64796ed9850c99a34b41305630286",
+                "sha256:a35af656a7ba1d3decdd4fae5322b87277de8ac98b7d9da657d9e212ece76a61",
+                "sha256:b1fe1a6f3a6f355f6c29789b5927f8bd4f134a4bd9a781099a7c4f66af8850f5",
+                "sha256:b5ad0adb51b2dee7d0ee75a69e9871e2ddfb061c73ea8bc439376298141f77f5",
+                "sha256:ba3c7a2814ec8a176bb71f91478293d633c08582119e713a0c5351c0f77698da",
+                "sha256:cd77d58fb2acf57c1d1ee2835567cd70e6f1835e32090538f17f8a3a99e5e34b",
+                "sha256:cdb3a70285e8220875e4d2bc394e49b4988bdb1298ffa4e0bd81b2f613be397c",
+                "sha256:deb529c40c3f1e38d53d5ae6cd077c21f1d49e13afc7936f7f868455e16b64a0",
+                "sha256:e7894793e6e8540dbeac77c87b489e331947813511108ae097f1715c018b8f3d"
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-            "version": "==0.24.2"
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+                "sha256:1fa4bae1a6784aa550a1c9e168422798104a85bf9c77a1063ea77ee6f8452e3a",
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+                "sha256:387dc7b3c0424327fe3218f81e05fc27832772a5dffbed385013161be58df90b",
+                "sha256:6597df07ea361231e60c00692d8a8099b519ed741c04e65821e632bc9ccb924c",
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+                "sha256:858a0d890d957ae62338624e4aeaf1de436dba2c2c0772570a686eaca8b4fc85",
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+                "sha256:d234bcf669e8b4d6cbcd99e3ce7a8918414520aeb113e2a81aeb02d0a533d7f7"
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+            "version": "==1.0.3"
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         "python-dateutil": {
             "hashes": [
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-                "sha256:c89805f6f4d64db21ed966fda138f8a5ed7a4fdbc1a8ee329ce1b74e3c74da9e"
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-            "version": "==2.8.0"
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         },
         "pytz": {
             "hashes": [
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-            "version": "==2018.9"
+            "version": "==2019.3"
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-            "version": "==2.21.0"
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         "six": {
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-            "version": "==1.12.0"
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         "urllib3": {
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+                "sha256:d705f8aeecdf3262379644e4b55107a3b55860eb812b673b28d0fbc347a60c55",
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+                "sha256:f8a7bff6e8664afc4e6c28b983845c5bc14965030e3fb98789734d416af77c4b"
+            ],
+            "version": "==8.1"
         }
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     "develop": {
-        "appnope": {
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-                "sha256:5b26757dc6f79a3b7dc9fab95359328d5747fcb2409d331ea66d0272b90ab2a0",
-                "sha256:8b995ffe925347a2138d7ac0fe77155e4311a0ea6d6da4f5128fe4b3cbe5ed71"
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-            "markers": "sys_platform == 'darwin'",
-            "version": "==0.1.0"
-        },
         "attrs": {
             "hashes": [
-                "sha256:69c0dbf2ed392de1cb5ec704444b08a5ef81680a61cb899dc08127123af36a79",
-                "sha256:f0b870f674851ecbfbbbd364d6b5cbdff9dcedbc7f3f5e18a6891057f21fe399"
+                "sha256:08a96c641c3a74e44eb59afb61a24f2cb9f4d7188748e76ba4bb5edfa3cb7d1c",
+                "sha256:f7b7ce16570fe9965acd6d30101a28f62fb4a7f9e926b3bbc9b61f8b04247e72"
             ],
-            "version": "==19.1.0"
+            "version": "==19.3.0"
         },
         "backcall": {
             "hashes": [
@@ -198,10 +185,11 @@
         },
         "bleach": {
             "hashes": [
-                "sha256:213336e49e102af26d9cde77dd2d0397afabc5a6bf2fed985dc35b5d1e285a16",
-                "sha256:3fdf7f77adcf649c9911387df51254b813185e32b2c6619f690b593a617e19fa"
+                "sha256:cc8da25076a1fe56c3ac63671e2194458e0c4d9c7becfd52ca251650d517903c",
+                "sha256:e78e426105ac07026ba098f04de8abe9b6e3e98b5befbf89b51a5ef0a4292b03"
             ],
-            "version": "==3.1.0"
+            "index": "pypi",
+            "version": "==3.1.4"
         },
         "cycler": {
             "hashes": [
@@ -212,17 +200,17 @@
         },
         "decorator": {
             "hashes": [
-                "sha256:86156361c50488b84a3f148056ea716ca587df2f0de1d34750d35c21312725de",
-                "sha256:f069f3a01830ca754ba5258fde2278454a0b5b79e0d7f5c13b3b97e57d4acff6"
+                "sha256:41fa54c2a0cc4ba648be4fd43cff00aedf5b9465c9bf18d64325bc225f08f760",
+                "sha256:e3a62f0520172440ca0dcc823749319382e377f37f140a0b99ef45fecb84bfe7"
             ],
-            "version": "==4.4.0"
+            "version": "==4.4.2"
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         "defusedxml": {
             "hashes": [
-                "sha256:24d7f2f94f7f3cb6061acb215685e5125fbcdc40a857eff9de22518820b0a4f4",
-                "sha256:702a91ade2968a82beb0db1e0766a6a273f33d4616a6ce8cde475d8e09853b20"
+                "sha256:6687150770438374ab581bb7a1b327a847dd9c5749e396102de3fad4e8a3ef93",
+                "sha256:f684034d135af4c6cbb949b8a4d2ed61634515257a67299e5f940fbaa34377f5"
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-            "version": "==0.5.0"
+            "version": "==0.6.0"
         },
         "entrypoints": {
             "hashes": [
@@ -231,20 +219,28 @@
             ],
             "version": "==0.3"
         },
+        "importlib-metadata": {
+            "hashes": [
+                "sha256:2a688cbaa90e0cc587f1df48bdc97a6eadccdcd9c35fb3f976a09e3b5016d90f",
+                "sha256:34513a8a0c4962bc66d35b359558fd8a5e10cd472d37aec5f66858addef32c1e"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==1.6.0"
+        },
         "ipykernel": {
             "hashes": [
-                "sha256:0aeb7ec277ac42cc2b59ae3d08b10909b2ec161dc6908096210527162b53675d",
-                "sha256:0fc0bf97920d454102168ec2008620066878848fcfca06c22b669696212e292f"
+                "sha256:37c65d2e2da3326e5cf114405df6d47d997b8a3eba99e2cc4b75833bf71a5e18",
+                "sha256:39746b5f7d847a23fae4eac893e63e3d9cc5f8c3a4797fcd3bfa8d1a296ec6ed"
             ],
-            "version": "==5.1.0"
+            "version": "==5.2.0"
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         "ipython": {
             "hashes": [
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-                "sha256:f5102c1cd67e399ec8ea66bcebe6e3968ea25a8977e53f012963e5affeb1fe38"
+                "sha256:ca478e52ae1f88da0102360e57e528b92f3ae4316aabac80a2cd7f7ab2efb48a",
+                "sha256:eb8d075de37f678424527b5ef6ea23f7b80240ca031c2dd6de5879d687a65333"
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             "markers": "python_version >= '3.3'",
-            "version": "==7.4.0"
+            "version": "==7.13.0"
         },
         "ipython-genutils": {
             "hashes": [
@@ -255,31 +251,31 @@
         },
         "ipywidgets": {
             "hashes": [
-                "sha256:0f2b5cde9f272cb49d52f3f0889fdd1a7ae1e74f37b48dac35a83152780d2b7b",
-                "sha256:a3e224f430163f767047ab9a042fc55adbcab0c24bbe6cf9f306c4f89fdf0ba3"
+                "sha256:13ffeca438e0c0f91ae583dc22f50379b9d6b28390ac7be8b757140e9a771516",
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-            "version": "==7.4.2"
+            "version": "==7.5.1"
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         "jedi": {
             "hashes": [
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-                "sha256:2c6bcd9545c7d6440951b12b44d373479bf18123a401a52025cf98563fbd826c"
+                "sha256:b4f4052551025c6b0b0b193b29a6ff7bdb74c52450631206c262aef9f7159ad2",
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-            "version": "==0.13.3"
+            "version": "==0.16.0"
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         "jinja2": {
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-                "sha256:f84be1bb0040caca4cea721fcbbbbd61f9be9464ca236387158b0feea01914a4"
+                "sha256:93187ffbc7808079673ef52771baa950426fd664d3aad1d0fa3e95644360e250",
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-            "version": "==2.10"
+            "version": "==2.11.1"
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         "jsonschema": {
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-                "sha256:a5f6559964a3851f59040d3b961de5e68e70971afb88ba519d27e6a039efff1a"
+                "sha256:4e5b3cf8216f577bee9ce139cbe72eca3ea4f292ec60928ff24758ce626cd163",
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-            "version": "==3.0.1"
+            "version": "==3.2.0"
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         "jupyter": {
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@@ -292,57 +288,66 @@
         },
         "jupyter-client": {
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-            "version": "==5.2.4"
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         "jupyter-core": {
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@@ -350,13 +355,16 @@
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@@ -373,7 +381,9 @@
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@@ -405,52 +415,50 @@
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@@ -460,18 +468,18 @@
         },
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@@ -482,17 +490,16 @@
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@@ -504,67 +511,77 @@
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@@ -575,50 +592,52 @@
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-                "sha256:55abf9ade563b8f9be1f34e4233c7b7bde726059947a593322e8a553cc4c067a",
-                "sha256:65011551baff97f5414c67018e908110693143cfbaeb16831b743fe7cad8b927"
+                "sha256:4804a774f802306a7d9af7322193c5390f1da0abb429e082a10ef1d46e6fb2c2",
+                "sha256:a43dcb3e353bc680dd0783b1d9c3fc28d529f190bc54ba9a229f72fe6e7a54d7"
             ],
-            "version": "==0.8.1"
+            "version": "==0.8.3"
         },
         "testpath": {
             "hashes": [
-                "sha256:46c89ebb683f473ffe2aab0ed9f12581d4d078308a3cb3765d79c6b2317b0109",
-                "sha256:b694b3d9288dbd81685c5d2e7140b81365d46c29f5db4bc659de5aa6b98780f8"
+                "sha256:60e0a3261c149755f4399a1fff7d37523179a70fdc3abdf78de9fc2604aeec7e",
+                "sha256:bfcf9411ef4bf3db7579063e0546938b1edda3d69f4e1fb8756991f5951f85d4"
             ],
-            "version": "==0.4.2"
+            "version": "==0.4.4"
         },
         "tornado": {
             "hashes": [
-                "sha256:1174dcb84d08887b55defb2cda1986faeeea715fff189ef3dc44cce99f5fca6b",
-                "sha256:2613fab506bd2aedb3722c8c64c17f8f74f4070afed6eea17f20b2115e445aec",
-                "sha256:44b82bc1146a24e5b9853d04c142576b4e8fa7a92f2e30bc364a85d1f75c4de2",
-                "sha256:457fcbee4df737d2defc181b9073758d73f54a6cfc1f280533ff48831b39f4a8",
-                "sha256:49603e1a6e24104961497ad0c07c799aec1caac7400a6762b687e74c8206677d",
-                "sha256:8c2f40b99a8153893793559919a355d7b74649a11e59f411b0b0a1793e160bc0",
-                "sha256:e1d897889c3b5a829426b7d52828fb37b28bc181cd598624e65c8be40ee3f7fa"
+                "sha256:0fe2d45ba43b00a41cd73f8be321a44936dc1aba233dee979f17a042b83eb6dc",
+                "sha256:22aed82c2ea340c3771e3babc5ef220272f6fd06b5108a53b4976d0d722bcd52",
+                "sha256:2c027eb2a393d964b22b5c154d1a23a5f8727db6fda837118a776b29e2b8ebc6",
+                "sha256:5217e601700f24e966ddab689f90b7ea4bd91ff3357c3600fa1045e26d68e55d",
+                "sha256:5618f72e947533832cbc3dec54e1dffc1747a5cb17d1fd91577ed14fa0dc081b",
+                "sha256:5f6a07e62e799be5d2330e68d808c8ac41d4a259b9cea61da4101b83cb5dc673",
+                "sha256:c58d56003daf1b616336781b26d184023ea4af13ae143d9dda65e31e534940b9",
+                "sha256:c952975c8ba74f546ae6de2e226ab3cc3cc11ae47baf607459a6728585bb542a",
+                "sha256:c98232a3ac391f5faea6821b53db8db461157baa788f5d6222a193e9456e1740"
             ],
-            "version": "==6.0.2"
+            "version": "==6.0.4"
         },
         "traitlets": {
             "hashes": [
-                "sha256:9c4bd2d267b7153df9152698efb1050a5d84982d3384a37b2c1f7723ba3e7835",
-                "sha256:c6cb5e6f57c5a9bdaa40fa71ce7b4af30298fbab9ece9815b5d995ab6217c7d9"
+                "sha256:70b4c6a1d9019d7b4f6846832288f86998aa3b9207c6821f3578a6a6a467fe44",
+                "sha256:d023ee369ddd2763310e4c3eae1ff649689440d4ae59d7485eb4cfbbe3e359f7"
             ],
-            "version": "==4.3.2"
+            "version": "==4.3.3"
         },
         "wcwidth": {
             "hashes": [
-                "sha256:3df37372226d6e63e1b1e1eda15c594bca98a22d33a23832a90998faa96bc65e",
-                "sha256:f4ebe71925af7b40a864553f761ed559b43544f8f71746c2d756c7fe788ade7c"
+                "sha256:cafe2186b3c009a04067022ce1dcd79cb38d8d65ee4f4791b8888d6599d1bbe1",
+                "sha256:ee73862862a156bf77ff92b09034fc4825dd3af9cf81bc5b360668d425f3c5f1"
             ],
-            "version": "==0.1.7"
+            "version": "==0.1.9"
         },
         "webencodings": {
             "hashes": [
@@ -629,10 +648,17 @@
         },
         "widgetsnbextension": {
             "hashes": [
-                "sha256:14b2c65f9940c9a7d3b70adbe713dbd38b5ec69724eebaba034d1036cf3d4740",
-                "sha256:fa618be8435447a017fd1bf2c7ae922d0428056cfc7449f7a8641edf76b48265"
+                "sha256:079f87d87270bce047512400efd70238820751a11d2d8cb137a5a5bdbaf255c7",
+                "sha256:bd314f8ceb488571a5ffea6cc5b9fc6cba0adaf88a9d2386b93a489751938bcd"
             ],
-            "version": "==3.4.2"
+            "version": "==3.5.1"
+        },
+        "zipp": {
+            "hashes": [
+                "sha256:aa36550ff0c0b7ef7fa639055d797116ee891440eac1a56f378e2d3179e0320b",
+                "sha256:c599e4d75c98f6798c509911d08a22e6c021d074469042177c8c86fb92eefd96"
+            ],
+            "version": "==3.1.0"
         }
     }
 }