original_string: public function setCwd($cwd)
      {
          if (empty($cwd)) {
              $cwd    = null;
          } else {
              $cwd    = (string)$cwd;
          }
          $this->cwd  = $cwd;
          return $this;
      }
code: public function setCwd($cwd)
      {
          if (empty($cwd)) {
              $cwd    = null;
          } else {
              $cwd    = (string)$cwd;
          }
          $this->cwd  = $cwd;
          return $this;
      }
code_tokens: public function setCwd ( $ cwd ) { if ( empty ( $ cwd ) ) { $ cwd = null ; } else { $ cwd = ( string ) $ cwd ; } $ this -> cwd = $ cwd ; return $ this ; }
docstring: Sets the working directory for the call
  
  @param   string|null  $cwd   The working directory in which the call will be executed
  @return  Call
docstring_tokens: Sets the working directory for the call