code: public Observable<RedisResourceInner> getByResourceGroupAsync(String resourceGroupName, String name) {
          return getByResourceGroupWithServiceResponseAsync(resourceGroupName, name).map(new Func1<ServiceResponse<RedisResourceInner>, RedisResourceInner>() {
              @Override
              public RedisResourceInner call(ServiceResponse<RedisResourceInner> response) {
                  return response.body();
              }
          });
      }
docs: Gets a Redis cache (resource description).
  
  @param resourceGroupName The name of the resource group.
  @param name The name of the Redis cache.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the RedisResourceInner object