code: public Observable<FlowLogInformationInner> beginSetFlowLogConfigurationAsync(String resourceGroupName, String networkWatcherName, FlowLogInformationInner parameters) {
          return beginSetFlowLogConfigurationWithServiceResponseAsync(resourceGroupName, networkWatcherName, parameters).map(new Func1<ServiceResponse<FlowLogInformationInner>, FlowLogInformationInner>() {
              @Override
              public FlowLogInformationInner call(ServiceResponse<FlowLogInformationInner> response) {
                  return response.body();
              }
          });
      }
docs: Configures flow log on a specified resource.
  
  @param resourceGroupName The name of the network watcher resource group.
  @param networkWatcherName The name of the network watcher resource.
  @param parameters Parameters that define the configuration of flow log.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the FlowLogInformationInner object