import { BroadcastChannel } from "https://deno.land/x/deno@v1.28.0/cli/dts/lib.dom.d.ts";
type
{ prototype: BroadcastChannel; new (name: string): BroadcastChannel; }
import { BroadcastChannel } from "https://deno.land/x/deno@v1.28.0/cli/dts/lib.dom.d.ts";