Create type definition for 'koa-slow' (#4072)

src/@types/koa-slow.d.ts

@@ -0,0 +1,14 @@
+declare module 'koa-slow' {
+	import { Middleware } from 'koa';
+
+	interface ISlowOptions {
+		url?: RegExp
+		delay?: number
+	}
+
+	function slow(options?: ISlowOptions): Middleware;
+
+	namespace slow {} // Hack
+
+	export = slow;
+}

src/server/index.ts

@@ -13,7 +13,7 @@ import * as mount from 'koa-mount';
 import * as compress from 'koa-compress';
 import * as koaLogger from 'koa-logger';
 import * as requestStats from 'request-stats';
-//const slow = require('koa-slow');
+//import * as slow from 'koa-slow';
 
 import activityPub from './activitypub';
 import webFinger from './webfinger';