code: public Observable<EffectiveRouteListResultInner> getEffectiveRouteTableAsync(String resourceGroupName, String networkInterfaceName) {
          return getEffectiveRouteTableWithServiceResponseAsync(resourceGroupName, networkInterfaceName).map(new Func1<ServiceResponse<EffectiveRouteListResultInner>, EffectiveRouteListResultInner>() {
              @Override
              public EffectiveRouteListResultInner call(ServiceResponse<EffectiveRouteListResultInner> response) {
                  return response.body();
              }
          });
      }
docs: Gets all route tables applied to a network interface.
  
  @param resourceGroupName The name of the resource group.
  @param networkInterfaceName The name of the network interface.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable for the request