async def METHOD_NAME() -> 'hail.context.HailContext':
    if not Env._hc:
        sys.stderr.write("Initializing Hail with default parameters...\n")
        sys.stderr.flush()
        backend_name = choose_backend()
        if backend_name == 'service':
            from hail.context import init_batch
            await init_batch()
        else:
            return Env.hc()
    assert Env._hc is not None
    return Env._hc