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import Err, { PAYLOAD } from "./mod.ts";
(async function example_without_err([foo, bar] = ["hello", "world"]) {  try {    let err = new Error("I just ran into a problem.");
    function some_shitty_middleware(err: Error) {      // @ts-ignore      err.payload = {        status: 500.,      };    }
    // @ts-ignore    err.payload = { foo, bar };    some_shitty_middleware(err);
    throw err;  } catch (err) {    if (err.hasOwnProperty(PAYLOAD)) {      console.error("I found this payload.", (err as Err).payload);    }  }})();
(async function example_with_err([foo, bar] = ["hello", "world"]) {  try {    throw new Err("I just ran into a problem.").with({ foo, bar });  } catch (err) {    if (err.hasOwnProperty(PAYLOAD)) {      console.error("I found this payload.", (err as Err).payload);    }  }})();