public function cache(Row $row): Row
    {
        if ($row->id) {
            $this->cache[$row->id] = $row;
        }

        return $row;
    }
public function cache(Row $row): Row
    {
        if ($row->id) {
            $this->cache[$row->id] = $row;
        }

        return $row;
    }
public function cache ( Row $ row ) : Row { if ( $ row -> id ) { $ this -> cache [ $ row -> id ] = $ row ; } return $ row ; }
Store a row in the cache.
Store a row in the cache .