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    "frame_type": "ack", "ack_delay": 112, "acked_ranges": [[196, 196]], "ect0": 195, "ect1": 0, "ce": 0}, { 
    "frame_type": "connection_close", "error_space": "application", "error_code": 0}]}],
[10301257, 0, "info", "message", { "message": "Server CB, Stream: 0, 0 bytes, fin=6\u000a"}],
[10301232, 0, "recovery", "metrics_updated", {"cwnd": 27540,"bytes_in_flight": 55,"smoothed_rtt": 59409,"latest_rtt": 68635}],
[10301271, 0, "transport", "spin_bit_updated", { "state": true }],
[10301271, 0, "transport", "packet_sent", { "packet_type": "1RTT", "header": { "packet_size": 7, "packet_number": 198 }, "frames": [{ 
    "frame_type": "connection_close", "error_space": "transport", "error_code": 0}]}],
[10301271, 0, "transport", "datagram_sent", { "byte_length": 23}],
[10301309, 0, "info", "message", { "message": "Closed. Retrans= 1, spurious= 0, max sp gap = 0, max sp delay = 0, dg-coal: 1.000000"}]]}]}