--- /dev/null
+#ifndef CLS_LUA_CLIENT_HPP
+#define CLS_LUA_CLIENT_HPP
+#include <string>
+
+#include "include/buffer_fwd.h" // for bufferlist
+
+namespace librados {
+ class IoCtx;
+}
+
+namespace cls_lua_client {
+ int exec(librados::IoCtx& ioctx, const std::string& oid,
+ const std::string& script, const std::string& handler,
+ librados::bufferlist& inbl, librados::bufferlist& outbl);
+}
+
+#endif