code: public VirtualWANInner updateTags(String resourceGroupName, String virtualWANName) {
          return updateTagsWithServiceResponseAsync(resourceGroupName, virtualWANName).toBlocking().last().body();
      }
docs: Updates a VirtualWAN tags.
  
  @param resourceGroupName The resource group name of the VirtualWan.
  @param virtualWANName The name of the VirtualWAN being updated.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @throws ErrorException thrown if the request is rejected by server
  @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent
  @return the VirtualWANInner object if successful.