diff --git a/handler.hpp b/handler.hpp
index e0d73d7..26950e9 100644
--- a/handler.hpp
+++ b/handler.hpp
@@ -15,7 +15,9 @@
 #pragma once
 
 #include <cstdint>
+#include <ipmid/api-types.hpp>
 #include <map>
+#include <span>
 #include <string>
 #include <tuple>
 #include <vector>
@@ -25,6 +27,8 @@
 namespace ipmi
 {
 
+using Resp = ::ipmi::RspType<std::uint8_t, std::vector<uint8_t>>;
+
 using VersionTuple =
     std::tuple<std::uint8_t, std::uint8_t, std::uint8_t, std::uint8_t>;