invalidate method
Invalidates the current backup verification codes for the user.
Request parameters:
userKey - Email or immutable ID of the user
$fields - Selector specifying which fields to include in a partial
response.
Completes with a commons.ApiRequestError if the API endpoint returned an error.
If the used http.Client completes with an error when making a REST call,
this method will complete with the same error.
Implementation
async.Future<void> invalidate(
  core.String userKey, {
  core.String? $fields,
}) async {
  final queryParams_ = <core.String, core.List<core.String>>{
    if ($fields != null) 'fields': [$fields],
  };
  final url_ = 'admin/directory/v1/users/' +
      commons.escapeVariable('$userKey') +
      '/verificationCodes/invalidate';
  await _requester.request(
    url_,
    'POST',
    queryParams: queryParams_,
    downloadOptions: null,
  );
}