WP_REST_Posts_Controller::handle_featured_media( int $featured_media, int $post_id ): bool|WP_Error

1578	protected function handle_featured_media( $featured_media, $post_id ) {1579 1580		$featured_media = (int) $featured_media;1581		if ( $featured_media ) {1582			$result = set_post_thumbnail( $post_id, $featured_media );1583			if ( $result ) {1584				return true;1585			} else {1586				return new WP_Error(1587					'rest_invalid_featured_media',1588					__( 'Invalid featured media ID.' ),1589					array( 'status' => 400 )1590				);1591			}1592		} else {1593			return delete_post_thumbnail( $post_id );1594		}1595	}