docs: def ParseObjs(self, objs, expression):
      """Parse one or more objects by testing if it has matching stat results.
  
      Args:
        objs: An iterable of objects that should be checked.
        expression: A StatFilter expression, e.g.:
          "uid:>0 gid:=0 file_type:link"
  
      Yields:
        matching objects.
      """
      self.Validate(expression)
      for obj in objs:
        if not isinstance(obj, rdf_client_fs.StatEntry):
          continue
        # If all match conditions pass, yield the object.
        for match in self.matchers:
          if not match(obj):
            break
        else:
          yield obj