couple of helper methods

wrapper.go

@@ -725,3 +725,19 @@ func (s *State) pushMapSlice(arr []map[string]any) error {
 	}
 	return nil
 }
+
+// PushLightUserData pushes a light userdata value
+func (s *State) PushLightUserData(ptr any) {
+	C.lua_pushlightuserdata(s.L, unsafe.Pointer(&ptr))
+}
+
+// Helper method for getting table length used internally
+func (s *State) getTableLength(index int) int {
+	length := 0
+	s.PushNil()
+	for s.Next(index - 1) {
+		length++
+		s.Pop(1)
+	}
+	return length
+}