Method: Determine if a the lesson is marked as “free”

Method: Determine if the lesson is an orphan

Method: An array of default arguments to pass to $this->create() when creating a new post

Method: Attempt to get oEmbed for an audio provider

Method: Get the date a course became or will become available according to element drip settings

Method: Retrieve an instance of LLMS_Course for the element’s parent course