original_string: public function getMode()
  	{
          if(isset($this->_config['mode']) && $this->_config['mode']) {
              $this->_mode =$this->_config['mode'];
          }
          
  		return $this->_mode;
  	}
code: public function getMode()
  	{
          if(isset($this->_config['mode']) && $this->_config['mode']) {
              $this->_mode =$this->_config['mode'];
          }
          
  		return $this->_mode;
  	}
code_tokens: public function getMode ( ) { if ( isset ( $ this -> _config [ 'mode' ] ) && $ this -> _config [ 'mode' ] ) { $ this -> _mode = $ this -> _config [ 'mode' ] ; } return $ this -> _mode ; }
docstring: return the mode . can be either dev or preprod or live
  @return string
docstring_tokens: return the mode . can be either dev or preprod or live