globalThis woes with VSCode Deno extensions LSP

import { Debug } from "mods/Debug";
import { assertInstanceOf } from "@std/assert";

Deno.test("class Debug",
  async (t) => {
    await t.step("instanceof Map", () => {
      assertInstanceOf(new Debug(), Map);
    });
    await t.step("globalThis.debug instanceof Debug", () => {
      const _debug = new Debug();
      assertInstanceOf(
        // ts-ignore: we create it.
        globalThis.debug,
        Debug
      );
    });
  }
);

   constructor(...args) {
     super(args); // Let Map() do the initial conversion automatically.
     // Create the global debug member if non-existant yet.
     // @ts-ignore: See bottom of this file...
     globalThis.debug ??= this;
   }

   Element implicitly has an 'any' type because type 'typeof globalThis' has no index signature.