original_string: public function deleteMessage($key) {
  		if(isset($this->msg[$key])) {
  			unset($this->msg[$key]);
  		}
  		if(!$this->msg) {
  			$this->deleteFile();
  		}
  	}
code: public function deleteMessage($key) {
  		if(isset($this->msg[$key])) {
  			unset($this->msg[$key]);
  		}
  		if(!$this->msg) {
  			$this->deleteFile();
  		}
  	}
code_tokens: public function deleteMessage ( $ key ) { if ( isset ( $ this -> msg [ $ key ] ) ) { unset ( $ this -> msg [ $ key ] ) ; } if ( ! $ this -> msg ) { $ this -> deleteFile ( ) ; } }
docstring: Sets the message
  @var $key Remove a message for key
docstring_tokens: Sets the message