WP_REST_Font_Faces_Controller::get_parent_font_family_post( int $font_family_id ): WP_Post|WP_Error

771	protected function get_parent_font_family_post( $font_family_id ) {772		$error = new WP_Error(773			'rest_post_invalid_parent',774			__( 'Invalid post parent ID.', 'default' ),775			array( 'status' => 404 )776		);777 778		if ( (int) $font_family_id <= 0 ) {779			return $error;780		}781 782		$font_family_post = get_post( (int) $font_family_id );783 784		if ( empty( $font_family_post ) || empty( $font_family_post->ID )785		|| 'wp_font_family' !== $font_family_post->post_type786		) {787			return $error;788		}789 790		return $font_family_post;791	}