public function __isset( $name ) {

		$name = (string) $name;

		if ( in_array( $name, array( '_data', 'data', 'total', 'total_rows', 'zebra' ), true ) ) {
			return true;
		} elseif ( in_array( $name, array( 'meta', 'meta_properties', 'meta_extra' ), true ) ) {
			return true;
		} else {
			return isset( $this->new->{$name} );
		}
	}