enhance the use plugin type

package.json

@@ -4,6 +4,9 @@
   "description": "Wechaty is a Bot SDK for Individual Account, Powered by TypeScript, Docker, and 💖",
   "main": "dist/src/index.js",
   "typings": "dist/src/index.d.ts",
+  "engines": {
+    "node": ">= 12"
+  },
   "wechaty": {
     "DEFAULT_PORT": 8080,
     "DEFAULT_PROTOCOL": "io|0.0.1",
@@ -79,9 +82,6 @@
     "url": "https://opencollective.com/wechaty"
   },
   "homepage": "https://github.com/wechaty/",
-  "engines": {
-    "node": ">= 12"
-  },
   "dependencies": {
     "brolog": "^1.8.3",
     "clone-class": "^0.7.3",

src/wechaty.ts

@@ -240,9 +240,10 @@ export class Wechaty extends EventEmitter implements Sayable {
    * bot.use(WechatyReportPlugin({ url: 'http://somewhere.to.report.your.data.com' })
    */
   public static use (
-    ...plugins:  WechatyPlugin[]
+    ...plugins:  (WechatyPlugin | WechatyPlugin[])[]
   ) {
-    this.globalPluginList = this.globalPluginList.concat(plugins)
+    const pluginList = plugins.flat()
+    this.globalPluginList = this.globalPluginList.concat(pluginList)
   }
 
   /**
@@ -589,8 +590,9 @@ export class Wechaty extends EventEmitter implements Sayable {
    * // The same usage with Wechaty.use().
    *
    */
-  public use (...plugins: WechatyPlugin[]) {
-    plugins.forEach(plugin => plugin(this))
+  public use (...plugins: (WechatyPlugin | WechatyPlugin[])[]) {
+    const pluginList = plugins.flat()
+    pluginList.forEach(plugin => plugin(this))
     return this
   }