#https://cf.nascar.com/live/feeds/live-flag-data.json
[
{
lap_number: Lap the flag was thrown on
flag_state: flag state (see [Flag State](FlagState.MD) for flag meaning)
elapsed_time: Seconds since start of race
beneficiary: ?
comment: Has stage information
time_of_day: number of seconds since midnight
time_of_day_os: zulu time
}
}