Function: Check if Dozent LMS single template exists in the current theme.

Filter Hook: Filter the default return value of dozent_has_single_template_in_theme() function

Function: Check if any course is expirable

Filter Hook: Filter the result which returns dozent_course_expirable();

Function: Returns whether a particular user has the instructor capability.

Function: Determines whether the query is for an existing dozent user profile page.

Function: Determine if a course is publicly accessible

Filter Hook: Filter the return value of dozent_course_is_public(); function

Function: Determine if a course is protected

Filter Hook: Filter the return value of dozent_course_is_protected(); function