code: public Observable<RedisAccessKeysInner> listKeysAsync(String resourceGroupName, String name) {
          return listKeysWithServiceResponseAsync(resourceGroupName, name).map(new Func1<ServiceResponse<RedisAccessKeysInner>, RedisAccessKeysInner>() {
              @Override
              public RedisAccessKeysInner call(ServiceResponse<RedisAccessKeysInner> response) {
                  return response.body();
              }
          });
      }
docs: Retrieve a Redis cache's access keys. This operation requires write permission to the cache resource.
  
  @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 RedisAccessKeysInner object