using AsyncCommandDispatcherCreator = std::function<std::shared_ptr<redis::AsyncCommandDispatcher>(Engine& engine,
const redis::DatabaseInfo& databaseInfo,
std::shared_ptr<redis::ContentsBuilder> contentsBuilder,
using AsyncCommandDispatcherCreator = std::function<std::shared_ptr<redis::AsyncCommandDispatcher>(Engine& engine,
const redis::DatabaseInfo& databaseInfo,
std::shared_ptr<redis::ContentsBuilder> contentsBuilder,