`JimpInstance` type can't be used consistently when working with Jimp instances

import Jimp from "jimp"

const img1 = await Jimp.read("")
const img2 = await Jimp.create("")
const img3 = new Jimp("")

function test(j: Jimp) {}

test(img1) // works
test(img2) // works
test(img3) // works

import { Jimp, JimpInstance } from "jimp";

const inst = new Jimp({ width: 100, height: 100 });
const img = await Jimp.read("…");

function testInstance(j: JimpInstance) {}
function testRead(j: Awaited<ReturnType<typeof Jimp.read>>) {}

testInstance(img); // error
testRead(img);

testInstance(inst);
testRead(inst); // error