Using both `c.body` and `c.json` in an endpoint results in `response.json()` of `Promise<unknown>`

export const routes = new Hono()
    .get(
        '/hello',
        (c) => {
            if (Math.random() > 0.5) {
                return c.body(null, 204); // c.json(null, 204) will get the types to work but Response constructor: Invalid response status code 204 runtime error
            }
            return c.json({ hello: 'world' }, 200);
        }
    );

const response = await rpc.api.hello.$get();
const json = await response.json();
//    ^^^^ unknown