How to use the aiopg.connection.TIMEOUT function in aiopg

def test_timeout(engine):
    assert TIMEOUT == engine.timeout

async def test_execute_override_timeout(connect):
    timeout = 0.1
    conn = await connect()
    cur = await conn.cursor()
    assert TIMEOUT == cur.timeout

    t1 = time.time()
    with pytest.raises(asyncio.TimeoutError):
        await cur.execute("SELECT pg_sleep(1)", timeout=timeout)
    t2 = time.time()
    dt = t2 - t1
    assert 0.08 <= dt <= 0.15, dt

async def test_override_cursor_timeout(connect):
    timeout = 0.1
    conn = await connect()
    assert TIMEOUT == conn.timeout
    cur = await conn.cursor(timeout=timeout)
    assert timeout == cur.timeout

    t1 = time.time()
    with pytest.raises(asyncio.TimeoutError):
        await cur.execute("SELECT pg_sleep(1)")
    t2 = time.time()
    dt = t2 - t1
    assert 0.08 <= dt <= 0.15, dt

async def test_create_pool(create_pool):
    pool = await create_pool()
    assert isinstance(pool, Pool)
    assert 1 == pool.minsize
    assert 10 == pool.maxsize
    assert 1 == pool.size
    assert 1 == pool.freesize
    assert TIMEOUT == pool.timeout
    assert not pool.echo