'Update a reservation.
:param reservation_status: Either accepted or rejected. Specifying
accepted means the Worker has received the Task and will process
it. Work Distribution Service will no longer consider this task
eligible for assignment, and no other Worker will receive this
Task. Specifying rejected means the Worker has refused the
assignment and Work Distribution Service will attempt to assign
this Task to the next eligible Worker.
:param worker_activity_sid: If rejecting a reservation, change the
worker that is tied to this reservation to the supplied activity.
If not provided, the WorkerPreviousActivitySid on the Reservation
will be used.'

def update(self, **kwargs):

    return self.parent.update_instance(self.name, kwargs)
