diff --git a/lib/golang/lib.go b/lib/golang/lib.go
index 25af20a..01dbe49 100644
--- a/lib/golang/lib.go
+++ b/lib/golang/lib.go
@@ -127,33 +127,36 @@ func (ipc *ipcCommon) handleCall(msg Message) {
 	for i, arg := range msg.Args {
 		paramType := method.Type().In(i)
 		argType := reflect.TypeOf(arg)
-
-		// JSON decodes any number to float64. If we need int, we should check and convert
-		if paramType.Kind() == reflect.Int && argType.Kind() == reflect.Float64 {
-			floatArg := arg.(float64)
-			if float64(int64(floatArg)) == floatArg && !paramType.OverflowInt(int64(floatArg)) {
-				arg = arg.(int)
-			}
-		}
-
-		args = append(args, reflect.ValueOf(paramType))
+		arg = ipc.convType(paramType, argType, arg)
+		args = append(args, reflect.ValueOf(arg))
 	}
 
-	results := method.Call(args)
-	resVals := results[0 : len(results)-1]
-	resErrVal := results[len(results)-1]
+	allResultVals := method.Call(args)
+	retResultVals := allResultVals[0 : len(allResultVals)-1]
+	errResultVals := allResultVals[len(allResultVals)-1]
 
-	var res []any
-	for _, resVal := range resVals {
-		res = append(res, resVal.Interface())
+	var results []any
+	for _, resVal := range retResultVals {
+		results = append(results, resVal.Interface())
 	}
 
 	var resErr error
-	if !resErrVal.IsNil() {
-		resErr = resErrVal.Interface().(error)
+	if !errResultVals.IsNil() {
+		resErr = errResultVals.Interface().(error)
 	}
 
-	ipc.sendResponse(msg.Id, res, resErr)
+	ipc.sendResponse(msg.Id, results, resErr)
+}
+
+func (ipc *ipcCommon) convType(needType reflect.Type, gotType reflect.Type, arg any) any {
+	// JSON decodes any number to float64. If we need int, we should check and convert
+	if needType.Kind() == reflect.Int && gotType.Kind() == reflect.Float64 {
+		floatArg := arg.(float64)
+		if float64(int64(floatArg)) == floatArg && !needType.OverflowInt(int64(floatArg)) {
+			arg = int(floatArg)
+		}
+	}
+	return arg
 }
 
 func (ipc *ipcCommon) findMethod(methodName string) (reflect.Value, error) {