original_string: public function orphan($newBranch = null)
      {
          $this->arguments[] = '--orphan';
          if ($newBranch) {
              $this->arguments[] = $newBranch;
          }
          return $this;
      }
code: public function orphan($newBranch = null)
      {
          $this->arguments[] = '--orphan';
          if ($newBranch) {
              $this->arguments[] = $newBranch;
          }
          return $this;
      }
code_tokens: public function orphan ( $ newBranch = null ) { $ this -> arguments [ ] = '--orphan' ; if ( $ newBranch ) { $ this -> arguments [ ] = $ newBranch ; } return $ this ; }
docstring: Add the orphan option to the command line.
  
  @param null|string $newBranch The name of the new orphan branch.
  
  @return CheckoutCommandBuilder
docstring_tokens: Add the orphan option to the command line .