code: def clean_filters(filters: Mapping = None) -> str:
      
  
      if filters and isinstance(filters, dict):
          for k, v in filters.items():
              if not isinstance(v, list):
                  v = [v]
              filters[k] = v
  
      return json.dumps(filters)
docs: Checks the values inside `filters`
      https://docs.docker.com/engine/api/v1.29/#operation/ServiceList
      Returns a new dictionary in the format `map[string][]string` jsonized