def decode_function_result(self, function_name, data):
        """ Return the function call result decoded.

        Args:
            function_name (str): One of the existing functions described in the
                contract interface.
            data (bin): The encoded result from calling `function_name`.

        Return:
            List[object]: The values returned by the call to `function_name`.
        """
        description = self.function_data[function_name]
        arguments = decode_abi(description['decode_types'], data)
        return arguments