Function: Get wishlist courses by specific user

Function: Return Add new course URL

Function: Determine if a post (course | lecture) containing video

Function: Get Lecture Video Streaming URL

Function: Check if any user has access to specific course

Function: Get earning summery of an instructor

Function: Get all withdrawals requested by user

Function: Course access methods, this function returns all available methods

Function: Get the course price type,

Function: Get course object (post object) from the loop of course | lecture | quiz | assignemnts or by given course ID | lecture ID | quiz ID | assignment ID