public static function get_roles() {

		return apply_filters(
			'llms_get_roles',
			array(
				'lms_manager'           => __( 'LMS Manager', 'lifterlms' ),
				'instructor'            => __( 'Instructor', 'lifterlms' ),
				'instructors_assistant' => __( 'Instructor\'s Assistant', 'lifterlms' ),
				'student'               => __( 'Student', 'lifterlms' ),
			)
		);

	}