code: public Observable<List<VnetInfoInner>> listVnetsAsync(String resourceGroupName, String name) {
          return listVnetsWithServiceResponseAsync(resourceGroupName, name).map(new Func1<ServiceResponse<List<VnetInfoInner>>, List<VnetInfoInner>>() {
              @Override
              public List<VnetInfoInner> call(ServiceResponse<List<VnetInfoInner>> response) {
                  return response.body();
              }
          });
      }
docs: Get all Virtual Networks associated with an App Service plan.
  Get all Virtual Networks associated with an App Service plan.
  
  @param resourceGroupName Name of the resource group to which the resource belongs.
  @param name Name of the App Service plan.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the List&lt;VnetInfoInner&gt; object