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