fix helper

helper.go

@@ -4,7 +4,7 @@ import "context"
 
 func Do[T any](ctx context.Context, c Conn, method string, args any) (*T, error) {
 	var t T
-	err := c.Do(ctx, &t, method, args)
+	err := c.Call(ctx, &t, method, args)
 	if err != nil {
 		return nil, err
 	}