Intercept a global fetch API call for the defined inputs.

import { MockFetch } from "https://deno.land/x/deno_mock_fetch@1.0.1/mod.ts";

const mockFetch = new MockFetch();
mockFetch
  // Intercept `GET https://example.com/hello`
  .intercept("https://example.com/hello", { method: "GET" })
  // Response with status `200` and text `hello`
  .response("hello", { status: 200 });