code: public Observable<NetworkInterfaceTapConfigurationInner> getAsync(String resourceGroupName, String networkInterfaceName, String tapConfigurationName) {
          return getWithServiceResponseAsync(resourceGroupName, networkInterfaceName, tapConfigurationName).map(new Func1<ServiceResponse<NetworkInterfaceTapConfigurationInner>, NetworkInterfaceTapConfigurationInner>() {
              @Override
              public NetworkInterfaceTapConfigurationInner call(ServiceResponse<NetworkInterfaceTapConfigurationInner> response) {
                  return response.body();
              }
          });
      }
docs: Get the specified tap configuration on a network interface.
  
  @param resourceGroupName The name of the resource group.
  @param networkInterfaceName The name of the network interface.
  @param tapConfigurationName The name of the tap configuration.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the NetworkInterfaceTapConfigurationInner object