@solana/web3.js
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    Type Alias MessageHeader

    The message header, identifying signed and read-only account

    type MessageHeader = {
        numReadonlySignedAccounts: number;
        numReadonlyUnsignedAccounts: number;
        numRequiredSignatures: number;
    }
    Index
    numReadonlySignedAccounts: number

    The last numReadonlySignedAccounts of the signed keys are read-only accounts

    numReadonlyUnsignedAccounts: number

    The last numReadonlySignedAccounts of the unsigned keys are read-only accounts

    numRequiredSignatures: number

    The number of signatures required for this message to be considered valid. The signatures must match the first numRequiredSignatures of accountKeys.