private function setOutputWrapper(string $wrapper)
    {
        tap($this, function ($instance) use ($wrapper) {
            $this->outputWrapper = $wrapper;
        });
    }
private function setOutputWrapper(string $wrapper)
    {
        tap($this, function ($instance) use ($wrapper) {
            $this->outputWrapper = $wrapper;
        });
    }
private function setOutputWrapper ( string $ wrapper ) { tap ( $ this , function ( $ instance ) use ( $ wrapper ) { $ this -> outputWrapper = $ wrapper ; } ) ; }
Set a wrapper for payload output.

@param  string  $wrapper

@return $this
Set a wrapper for payload output .