def check_address_has_code(
        client: 'JSONRPCClient',
        address: Address,
        contract_name: str = '',
):
    """ Checks that the given address contains code. """
    result = client.web3.eth.getCode(to_checksum_address(address), 'latest')

    if not result:
        if contract_name:
            formated_contract_name = '[{}]: '.format(contract_name)
        else:
            formated_contract_name = ''

        raise AddressWithoutCode(
            '{}Address {} does not contain code'.format(
                formated_contract_name,
                to_checksum_address(address),
            ),
        )
Checks that the given address contains code.