Request message for [KeyManagementService.ListKeyRings][google.cloud.k
ms.v1.KeyManagementService.ListKeyRings].
.. attribute:: parent
Required. The resource name of the location associated with
the KeyRings, in the format
projects/*/locations/*.
Optional. Optional pagination token, returned earlier via [Lis
tKeyRingsResponse.next_page_token][google.cloud.kms.v1.ListK
eyRingsResponse.next_page_token].
Optional. Specify how the results should be sorted. If not
specified, the results will be sorted in the default order.
For more information, see Sorting and filtering list results
<https://cloud.google.com/kms/docs/sorting-and-filtering>__.