code: def make_param(self, name, raw_uri, recursive):
      
      if not raw_uri:
        return self.param_class(name, None, None, None, recursive, None)
      docker_path, uri_parts, provider = self.parse_uri(raw_uri, recursive)
      return self.param_class(name, raw_uri, docker_path, uri_parts, recursive,
                              provider)
docs: Return a *FileParam given an input uri.