def list(self, pattern='*'):
    """Returns a list of resource descriptors that match the filters.

    Args:
      pattern: An optional pattern to further filter the descriptors. This can
          include Unix shell-style wildcards. E.g. ``"aws*"``, ``"*cluster*"``.

    Returns:
      A list of ResourceDescriptor objects that match the filters.
    """
    if self._descriptors is None:
      self._descriptors = self._client.list_resource_descriptors(
          filter_string=self._filter_string)
    return [resource for resource in self._descriptors
            if fnmatch.fnmatch(resource.type, pattern)]
Returns a list of resource descriptors that match the filters.

    Args:
      pattern: An optional pattern to further filter the descriptors. This can
          include Unix shell-style wildcards. E.g. ``"aws*"``, ``"*cluster*"``.

    Returns:
      A list of ResourceDescriptor objects that match the filters.