public function cut(string $lineEnd = PHP_EOL): Observable
    {
        return $this->lift(function () use ($lineEnd) {
            return new CutOperator($lineEnd);
        });
    }
public function cut(string $lineEnd = PHP_EOL): Observable
    {
        return $this->lift(function () use ($lineEnd) {
            return new CutOperator($lineEnd);
        });
    }
public function cut ( string $ lineEnd = PHP_EOL ) : Observable { return $ this -> lift ( function ( ) use ( $ lineEnd ) { return new CutOperator ( $ lineEnd ) ; } ) ; }
Cuts the stream based upon a delimiter.

@param string $lineEnd

@return \Rx\Observable
Cuts the stream based upon a delimiter .