import { Middleware } from "https://deno.land/x/middleware@1.2.0/mod.ts";
Module
x/middleware/mod.ts>Middleware.isMiddleware
If you're gonna implement middlewares, you should do it right! ;)
Latest
x/middleware/mod.ts>Middleware.isMiddleware
import { Middleware } from "https://deno.land/x/middleware@1.2.0/mod.ts";