code: public Observable<VirtualHubInner> beginUpdateTagsAsync(String resourceGroupName, String virtualHubName, Map<String, String> tags) {
          return beginUpdateTagsWithServiceResponseAsync(resourceGroupName, virtualHubName, tags).map(new Func1<ServiceResponse<VirtualHubInner>, VirtualHubInner>() {
              @Override
              public VirtualHubInner call(ServiceResponse<VirtualHubInner> response) {
                  return response.body();
              }
          });
      }
docs: Updates VirtualHub tags.
  
  @param resourceGroupName The resource group name of the VirtualHub.
  @param virtualHubName The name of the VirtualHub.
  @param tags Resource tags.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the VirtualHubInner object