def decode_transaction_data(self, contract: Contract = None, registry=None) -> Tuple[ContractFunction, Dict[str, Any]]:
if self.data:
if not contract:
agent = ContractAgency.get_agent(MultiSigAgent, registry=registry)
blockchain = agent.blockchain
name, version, address, abi = registry.search(contract_address=self.target_address)
contract = blockchain.client.w3.eth.contract(abi=abi,
address=address,
version=version,
ContractFactoryClass=blockchain._CONTRACT_FACTORY)
contract_function, params = contract.decode_function_input(self.data)
return contract_function, params
else:
raise ValueError("This proposed TX doesn't have data")
