• If the listType property value is playlist, then the list property specifies a playlist ID or an array of video IDs. In the YouTube Data API, the playlist resource's id property specifies a playlist's ID, and the video resource's id property specifies a video ID.
• If the listType property value is user_uploads, then the list property identifies the user whose uploaded videos will be returned.
• If the listType property value is search, then the list property specifies the search query. Note: This functionality is deprecated and will no longer be supported as of 15 November 2020.