What is metadata_serialized & code??

[ajaythxkur]

public entry fun publish_package_txn(owner: &signer, metadata_serialized: vector<u8>, code: vector<vector<u8>>)
how to publish a contract calling other contract

[gregnazario]

How to get metadata_serialized and code?

There are more complicated ways to get it, but the easiest way is to give all the same compiler publish inputs and instead use build-publish-payload to give you the info

aptos move build-publish-payload