def METHOD_NAME(tctx):
    """
    If there is no server connection yet, establish one,
    because the server may send data first.
    """
    assert Playbook(tcp.TCPLayer(tctx, True)) << OpenConnection(tctx.server)
    tctx.server.timestamp_start = 1624544785
    assert Playbook(tcp.TCPLayer(tctx, True)) << None