code: def _parse_local_mount_uri(self, raw_uri):
      
      raw_uri = directory_fmt(raw_uri)
      _, docker_path = _local_uri_rewriter(raw_uri)
      local_path = docker_path[len('file'):]
      docker_uri = os.path.join(self._relative_path, docker_path)
      return local_path, docker_uri
docs: Return a valid docker_path for a local file path.