chore: initial commit

rediska/cache/types.hpp

@@ -0,0 +1,10 @@
+#pragma once
+
+#include <expected>
+#include <functional>
+#include <optional>
+#include "rediska/common/types.hpp"
+
+namespace cache {
+    using CacheOpCallback = std::function<void(std::expected<std::optional<CacheValue>, RediskaReturnCode>)>;
+}