code: def parse_params(
      path_params: Iterable[str],
  ) -> List[Dict[str, List[str]]]:
      """Normalizes the shape of params from the CLI to dict."""
      from dvc.dependency.param import ParamsDependency
  
      ret: Dict[str, List[str]] = defaultdict(list)
      for path_param in path_params:
          path, _, params_str = path_param.rpartition(":")
          # remove empty strings from params, on condition such as `-p "file1:"`
          params = filter(bool, params_str.split(","))
          if not path:
              path = ParamsDependency.DEFAULT_PARAMS_FILE
          ret[path].extend(params)
      return [{path: params} for path, params in ret.items()]
  
label_desc: Use image node_id 1 for calling a global function with example usage: parse_params(path_params) and returns: unknown