code: public Observable<VirtualMachineScaleSetInstanceViewInner> getInstanceViewAsync(String resourceGroupName, String vmScaleSetName) {
          return getInstanceViewWithServiceResponseAsync(resourceGroupName, vmScaleSetName).map(new Func1<ServiceResponse<VirtualMachineScaleSetInstanceViewInner>, VirtualMachineScaleSetInstanceViewInner>() {
              @Override
              public VirtualMachineScaleSetInstanceViewInner call(ServiceResponse<VirtualMachineScaleSetInstanceViewInner> response) {
                  return response.body();
              }
          });
      }
docs: Gets the status of a VM scale set instance.
  
  @param resourceGroupName The name of the resource group.
  @param vmScaleSetName The name of the VM scale set.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the VirtualMachineScaleSetInstanceViewInner object