protected function handle_featured_media( $featured_media, $post_id ) {

		$featured_media = (int) $featured_media;
		if ( $featured_media ) {
			$result = set_post_thumbnail( $post_id, $featured_media );
			if ( $result ) {
				return true;
			} else {
				return new WP_Error( 'rest_invalid_featured_media', __( 'Invalid featured media id.' ), array( 'status' => 400 ) );
			}
		} else {
			return delete_post_thumbnail( $post_id );
		}

	}