ResolveScript: Timeline new Functions (Create|Update|Delete)

Version:
17.4.3

Issue:
Many functions are available, but almost none of them manipulate Timeline items.
The TimelineItem operations that can be performed now are as follows.

• Add a clip to the end of track in the timeline.
• The clip cannot be `edited` such as changing the timecode position or deleting it.
  MediaPool:AppendToTimeline(clip1, clip2, ...) --> [TimelineItem]

Request:
Add functions to manipulate Timelines and TimelineItems.
I have tried to keep the names as close to the current code names as possible.

• Create
  # Adds a clip to the current timecode position.
  Timeline:InsertClipIntoTimeline(mediaPoolItem) --> TimelineItem
  
  # {clipInfo} is the same type as the argument of MediaPool:AppendToTimeline(). (Additional options such as video only)
  Timeline:InsertClipIntoTimeline({clipInfo}) --> TimelineItem
  
  
• Update
  # Each of the following already has a corresponding Get function, and Set function allows you to edit a clip.
  TimelineItem:SetName(clipName) --> Bool
  Timeline:SetStartFrame(frame) --> Bool
  Timeline:SetEndFrame(frame) --> Bool
  
  # Behavior of selecting and dragging the bottom center of a clip in EditTab.
  # Choose to TrimEditMode with the second argument.
  TimelineItem:SetStart(frame, useTrimEditMode) --> Bool
  
  # Behavior of selecting and dragging the edge of a clip in EditTab.
  # Choose to TrimEditMode with the second argument.
  TimelineItem:SetLeftOffset(frame, useTrimEditMode) --> Bool
  TimelineItem:SetRightOffset(frame, useTrimEditMode) --> Bool
  
  # Expose and document secret track functions discovered by roger.magnusson.
  https://forum.blackmagicdesign.com/viewtopic.php?f=21&t=113040
  
  # This function allows you to change the vertical position of the track.
  Timeline:MoveTrackByIndex(trackType, targetTrackIndex, distTrackIndex) --> Bool
  
  # Change the state of the track.
  # Functions that affect the behavior of Timeline:InsertFunctions()
  Timeline:SetDestinationTrack(trackType, trackIndex, enable) --> Bool
  Timeline:GetDestinationTrack(trackType, trackIndex) --> Int
  Timeline:SetAutoTrackSelector(trackType, trackIndex, enable) --> Bool
  Timeline:GetAutoTrackSelector(trackType, trackIndex) --> Bool
  
  
• Delete
  # Deletes a clip. This also allows for use cases such as `replace clip`.
  # Choose to RippleDelete with the first argument.
  TimelineItem:DeleteClip(useRipple) --> Bool
  
  # TopMenuBar > Edit > DeleteGaps functon
  Timeline:DeleteGaps() --> Bool

If there are any omissions in the specifications, I would appreciate it if you could let me know.
I know you are busy, but please check it out.
Thank you very much for your cooperation.

+1 and want TimelineItem:Get or SetProperty() to handle SpeedChange property

+1 Me TOO!

Please add AddTrack(type, name) to that list.