diff --git a/rpc/rpc.go b/rpc/rpc.go
index 69e3515..304e88c 100644
--- a/rpc/rpc.go
+++ b/rpc/rpc.go
@@ -134,16 +134,14 @@ func (re *rpcEngine) loop(ctx context.Context, redisClient *redis.Client, chanNa
 
 var errNoReceiver = errors.New("no receiver")
 
-type RpcCallContext struct {
+type callContext struct {
 	r Receiver
 	t primitive.ObjectID
 }
 
 var ErrCanExecuteHere = errors.New("go ahead")
 
-func MakeCallContext(r Receiver) RpcCallContext       { return RpcCallContext{r: r} }
-func (c *RpcCallContext) Target(t primitive.ObjectID) { c.t = t }
-func (c *RpcCallContext) Call(args ...any) error {
+func (c callContext) call(args ...any) error {
 	if c.r.TargetExists(c.t) {
 		// 여기 있네?
 		return ErrCanExecuteHere
@@ -168,6 +166,14 @@ func (c *RpcCallContext) Call(args ...any) error {
 	return engine.publish(serialized)
 }
 
+func CallOrGo(r Receiver, target primitive.ObjectID, args ...any) error {
+	cc := callContext{
+		r: r,
+		t: target,
+	}
+	return cc.call(args...)
+}
+
 func encode(target primitive.ObjectID, receiver string, funcname string, args ...any) ([]byte, error) {
 	buff := new(bytes.Buffer)
 
diff --git a/rpc/rpc_test.go b/rpc/rpc_test.go
new file mode 100644
index 0000000..941db5a
--- /dev/null
+++ b/rpc/rpc_test.go
@@ -0,0 +1,7 @@
+package rpc
+
+import "testing"
+
+func TestRpc(t *testing.T) {
+
+}