<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_cameras_schedule(self):
 """Return the schedule set for cameras."""

        resource = "schedule"
        schedule_event = self.publish_and_get_event(resource)
        if schedule_event:
            return schedule_event.get('properties')

        return None