'labels'              => array(
                    'name'               => __( 'Courses', 'lifterlms' ),
                    'singular_name'      => __( 'Course', 'lifterlms' ),
                    'menu_name'          => _x( 'Courses', 'Admin menu name', 'lifterlms' ),
                    'add_new'            => __( 'Add Course', 'lifterlms' ),