whole_func_string: function unwatch(filePath){
      filePath = path.resolve(filePath);
      if(_fileWatchers[filePath]) _fileWatchers[filePath].close();
      delete _fileWatchers[filePath];
  }
func_code_string: function unwatch(filePath){
      filePath = path.resolve(filePath);
      if(_fileWatchers[filePath]) _fileWatchers[filePath].close();
      delete _fileWatchers[filePath];
  }
func_documentation_string: Unwatching file
  @param {String} filePath