code: public Observable<LabInner> getAsync(String resourceGroupName, String labAccountName, String labName) {
          return getWithServiceResponseAsync(resourceGroupName, labAccountName, labName).map(new Func1<ServiceResponse<LabInner>, LabInner>() {
              @Override
              public LabInner call(ServiceResponse<LabInner> response) {
                  return response.body();
              }
          });
      }
docs: Get lab.
  
  @param resourceGroupName The name of the resource group.
  @param labAccountName The name of the lab Account.
  @param labName The name of the lab.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the LabInner object