Method: Get the attachments for a given object.
Method: Unassigns or deletes any previous attachments that are not present on the current attachment enqueue list.
Method: Attempts to fetch an oembed object with metadata for a provided URL using oEmbed.
Function: Fires for each custom column in the Media list table.
Method: Ajax callback to retrieves the db options for a specific media manager ID.
Method: Delete any stored transients when media manager UI is closed.
Method: Assign a meta key containing the media manager parent ID AND a default attach type to each new media attachment added through the media manager.