Timeline.set_mark_in_out# Timeline.set_mark_in_out(mark_in: int, mark_out: int, mark_type: str = 'all') → bool[source]# Sets mark in/out points on the timeline. Parameters: mark_in (int) – Frame number for in point mark_out (int) – Frame number for out point mark_type (str, optional) – Type of mark to set - “video”, “audio” or “all”. Defaults to “all”. Returns: True if successful, False otherwise Return type: bool