public function get_instructors( $exclude_hidden = false ) {

		$instructors = $this->post->get( 'instructors' );

		// If empty, respond with the course author in an array.
		if ( ! $instructors ) {
			$author_id   = $this->post->get( 'author' );
			$author      = get_userdata( $author_id );
			$instructors = array(
				wp_parse_args(
					array(
						'id'   => $author_id,
						'name' => $author ? $author->display_name : '',
					),
					llms_get_instructors_defaults()
				),
			);
		}

		if ( $exclude_hidden ) {
			foreach ( $instructors as $key => $instructor ) {
				if ( 'hidden' === $instructor['visibility'] ) {
					unset( $instructors[ $key ] );
				}
			}
		}

		return $instructors;

	}