docs: public Observable<PolicyStatesQueryResultsInner> listQueryResultsForResourceGroupLevelPolicyAssignmentAsync(PolicyStatesResource policyStatesResource, String subscriptionId, String resourceGroupName, String policyAssignmentName) {
          return listQueryResultsForResourceGroupLevelPolicyAssignmentWithServiceResponseAsync(policyStatesResource, subscriptionId, resourceGroupName, policyAssignmentName).map(new Func1<ServiceResponse<PolicyStatesQueryResultsInner>, PolicyStatesQueryResultsInner>() {
              @Override
              public PolicyStatesQueryResultsInner call(ServiceResponse<PolicyStatesQueryResultsInner> response) {
                  return response.body();
              }
          });
      }