code: def _scrub_method_name(self, method_name):
          
          if method_name not in self._scrubbed_method_names:
              self._scrubbed_method_names[method_name] = (
                  scrub_method_name(method_name))
  
          return self._scrubbed_method_names[method_name]
docs: Scrubs a method name, returning result from local cache if available.
  
          This method wraps fitparse.utils.scrub_method_name and memoizes results,
          as scrubbing a method name is expensive.
  
          Args:
              method_name: Method name to scrub.
  
          Returns:
              Scrubbed method name.