Revert "temp revert #81"

This reverts commit 835161c737.

src/record/index.ts

@@ -25,6 +25,21 @@ function wrapEvent(e: event): eventWithTime {
 
 let wrappedEmit!: (e: eventWithTime, isCheckout?: boolean) => void;
 
+export function addCustomEvent<T>(tag: string, payload: T) {
+  if (!wrappedEmit) {
+    throw new Error('please add custom event after start recording');
+  }
+  wrappedEmit(
+    wrapEvent({
+      type: EventType.Custom,
+      data: {
+        tag,
+        payload,
+      },
+    }),
+  );
+}
+
 function record(options: recordOptions = {}): listenerHandler | undefined {
   const {
     emit,