code: public Observable<List<AzureSkuInner>> listSkusAsync() {
          return listSkusWithServiceResponseAsync().map(new Func1<ServiceResponse<List<AzureSkuInner>>, List<AzureSkuInner>>() {
              @Override
              public List<AzureSkuInner> call(ServiceResponse<List<AzureSkuInner>> response) {
                  return response.body();
              }
          });
      }
docs: Lists eligible SKUs for Kusto resource provider.
  
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the List&lt;AzureSkuInner&gt; object