ImJs/examples/test.d.ts

import type { ISzyxPush } from "../packages/szyx-im/src/szyx-push-sdk";

import { ComponentCustomProperties } from "vue";

declare module "@vue/runtime-core" {
  interface ComponentCustomProperties {
    $SzyxPush: ISzyxPush; // 这里填类型
  }
}
// 必须导出，才能在其他文件中使用
export default ComponentCustomProperties;