Learndash_Admin_Assignment_Edit::assignment_metabox_content()
Method: Adds approval Link to assignment metabox.
Method: Adds approval Link to assignment metabox.
Method: Save metabox handler function.
Method: Updates assignment points and approval status.
Method: Public constructor for class.
Method: On Load handler function for this post type edit.
Class: Class for LearnDash Admin Assignment Edit.