function dozent_get_course_requirements( $course_id = 0 ) {

		$course_id = dozent_get_post_id( $course_id );

		$data = get_post_meta( $course_id, '_requirements', true );

		/**
		 * Filters the course requirements data
		 *
		 * This default filters return you course requirements raw data.
		 *
		 * It will return the _requirements meta value belongs with $course_id
		 *
		 * @since DozentLMS 1.0.0
		 *
		 * @param  string  $data  Meta Data
		 * @param  int  $course_id  Course ID
		 */

		return apply_filters( 'dozent_get_course_requirements', $data, $course_id );
	}