src/ImageResponse.php
private function getImageStream()
    {
        return null !== $this->stream ? $this->stream :
            (null !== $this->image ? $this->stream = new ImageStream($this->image) : null);
    }
private function getImageStream()
    {
        return null !== $this->stream ? $this->stream :
            (null !== $this->image ? $this->stream = new ImageStream($this->image) : null);
    }
private function getImageStream ( ) { return null !== $ this -> stream ? $ this -> stream : ( null !== $ this -> image ? $ this -> stream = new ImageStream ( $ this -> image ) : null ) ; }
getImageStream

@return Psr\Http\Message\StreamInterface
getImageStream