async def METHOD_NAME(pool):
    address = neo4j.Address(("127.0.0.1", 7687))
    assert pool.in_use_connection_count(address) == 0
    connection = await pool._acquire(address, None, Deadline(3), None)
    assert pool.in_use_connection_count(address) == 1
    await pool.release(connection)
    assert pool.in_use_connection_count(address) == 0