How to use the cryptoconditions.exceptions.ASN1EncodeError function in cryptoconditions

Args:
                input_ (:class:`~bigchaindb.common.transaction.
                    Input`) The Input to be signed.
                operation (str): The type of Transaction.
                message (str): The fulfillment message.
                output_condition_uri (str, optional): An Output to check the
                    Input against.

            Returns:
                bool: If the Input is valid.
        """
        ccffill = input_.fulfillment
        try:
            parsed_ffill = Fulfillment.from_uri(ccffill.serialize_uri())
        except (TypeError, ValueError,
                ParsingError, ASN1DecodeError, ASN1EncodeError):
            return False

        if operation == self.CREATE:
            # NOTE: In the case of a `CREATE` transaction, the
            #       output is always valid.
            output_valid = True
        else:
            output_valid = output_condition_uri == ccffill.condition_uri

        message = sha3_256(message.encode())
        if input_.fulfills:
            message.update('{}{}'.format(
                input_.fulfills.txid, input_.fulfills.output).encode())

        # NOTE: We pass a timestamp to `.validate`, as in case of a timeout
        #       condition we'll have to validate against it

def to_dict(self):
        """Transforms the object to a Python dictionary.

            Note:
                If an Input hasn't been signed yet, this method returns a
                dictionary representation.

            Returns:
                dict: The Input as an alternative serialization format.
        """
        try:
            fulfillment = self.fulfillment.serialize_uri()
        except (TypeError, AttributeError, ASN1EncodeError, ASN1DecodeError):
            fulfillment = _fulfillment_to_details(self.fulfillment)

        try:
            # NOTE: `self.fulfills` can be `None` and that's fine
            fulfills = self.fulfills.to_dict()
        except AttributeError:
            fulfills = None

        input_ = {
            'owners_before': self.owners_before,
            'fulfills': fulfills,
            'fulfillment': fulfillment,
        }
        return input_