@alicloud/console-base-messenger-tutor/build/es/messenger/on-tutor-step-change.js

ConsoleBase 信使 - Tutor

import { subscribeByApp } from '@alicloud/console-base-messenger-base';
import { MESSAGE_TYPE_TUTOR_STEP_CHANGE } from '../const';
export default function onTutorStepChange(fn) {
  return subscribeByApp(MESSAGE_TYPE_TUTOR_STEP_CHANGE, function (payload) {
    if (!payload) {
      return;
    }
    fn(payload.id, payload.to, payload.from);
  });
}