docs: public Observable<StreamingPolicyInner> getAsync(String resourceGroupName, String accountName, String streamingPolicyName) {
          return getWithServiceResponseAsync(resourceGroupName, accountName, streamingPolicyName).map(new Func1<ServiceResponse<StreamingPolicyInner>, StreamingPolicyInner>() {
              @Override
              public StreamingPolicyInner call(ServiceResponse<StreamingPolicyInner> response) {
                  return response.body();
              }
          });
      }