code: def register_date_conversion_handler(date_specifier_patterns):
      
  
      def _decorator(func):
          global DATE_SPECIFIERS_CONVERSION_HANDLERS
          DATE_SPECIFIERS_CONVERSION_HANDLERS[DATE_SPECIFIERS_REGEXES[date_specifier_patterns]] = func
          return func
  
      return _decorator
docs: Decorator for registering handlers that convert text dates to dates.
  
      Args:
          date_specifier_patterns (str): the date specifier (in regex pattern format) for which the handler is registered