docs: public Observable<Page<RoleAssignmentInner>> listForResourceAsync(final String resourceGroupName, final String resourceProviderNamespace, final String parentResourcePath, final String resourceType, final String resourceName, final String filter) {
          return listForResourceWithServiceResponseAsync(resourceGroupName, resourceProviderNamespace, parentResourcePath, resourceType, resourceName, filter)
              .map(new Func1<ServiceResponse<Page<RoleAssignmentInner>>, Page<RoleAssignmentInner>>() {
                  @Override
                  public Page<RoleAssignmentInner> call(ServiceResponse<Page<RoleAssignmentInner>> response) {
                      return response.body();
                  }
              });
      }