Filter Hook: Filter the return of dozent_get_courses_by_instructor() function

Filter Hook: Filter the default quizzes status for Count course including {post_status}

Function: Get quizzes by course

Function: Get quiz attempts

Filter Hook: Filter output returns by dozent_attempt_statuses();

Function: Get all attempt statuses or any single status text retrieve by status key

Function: Get all correct questions options

Function: Get the answers placed by a user on the quiz attempt

Function: Count all attempts by Quiz

Function: Count all attempts by course