appendSignMultisigTransaction takes a multisig transaction blob, and appends our signature to it.
While we could derive public key preimagery from the partially-signed multisig transaction,
we ask the caller to pass it back in, to ensure they know what they are signing.
Returns
object containing txID, and blob representing encoded multisig txn
Parameters
multisigTxnBlob: Uint8Array
an encoded multisig txn. Supports non-payment txn types.
appendSignMultisigTransaction takes a multisig transaction blob, and appends our signature to it. While we could derive public key preimagery from the partially-signed multisig transaction, we ask the caller to pass it back in, to ensure they know what they are signing.
Returns
object containing txID, and blob representing encoded multisig txn