code: public Observable<TriggerInner> getAsync(String deviceName, String name, String resourceGroupName) {
          return getWithServiceResponseAsync(deviceName, name, resourceGroupName).map(new Func1<ServiceResponse<TriggerInner>, TriggerInner>() {
              @Override
              public TriggerInner call(ServiceResponse<TriggerInner> response) {
                  return response.body();
              }
          });
      }
docs: Get a specific trigger by name.
  
  @param deviceName The device name.
  @param name The trigger name.
  @param resourceGroupName The resource group name.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the TriggerInner object