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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def modify_ack_deadline(self, items):
 """Modify the ack deadline for the given messages. Args: items(Sequence[ModAckRequest]):
 The items to modify. """

        ack_ids = [item.ack_id for item in items]
        seconds = [item.seconds for item in items]

        request = types.StreamingPullRequest(
            modify_deadline_ack_ids=ack_ids, modify_deadline_seconds=seconds
        )
        self._manager.send(request)