original_string: protected function createRootFolder()
      {
          $this->rootFolder = $this->createFolder($this->baseFolderRealPath, uniqid('xlsx', true));
          return $this;
      }
code: protected function createRootFolder()
      {
          $this->rootFolder = $this->createFolder($this->baseFolderRealPath, uniqid('xlsx', true));
          return $this;
      }
code_tokens: protected function createRootFolder ( ) { $ this -> rootFolder = $ this -> createFolder ( $ this -> baseFolderRealPath , uniqid ( 'xlsx' , true ) ) ; return $ this ; }
docstring: Creates the folder that will be used as root
  
  @return FileSystemHelper
  @throws \Box\Spout\Common\Exception\IOException If unable to create the folder
docstring_tokens: Creates the folder that will be used as root