code: private function createStreamFromString(string $string): Stream
      {
          $stream = new Stream(fopen('php://temp', 'r+b'));
          $stream->write($string);
          $stream->rewind();
  
          return $stream;
      }
docs: Creates a stream from a string
  
  @param string $string The string to create a stream for
  @return Stream The stream
  @throws RuntimeException Thrown if the stream could not be written to