def METHOD_NAME(f_raw):
    """
    fc daq timestamps are in seconds, from beginning of file:
    https://github.com/legend-exp/pygama/blob/master/pygama/io/fcdaq.py#L27
    """
    ts = lh5.load_nda([f_raw], ['timestamp'], 'g024/raw')['timestamp']
    print(ts)
    print(ts.shape)
    print(f'first: {ts[0]}  {min(ts)}  last: {ts[-1]}  {max(ts)}')
    rt = ts[-1] / 60 # runtime in min
    plt.plot(np.arange(len(ts)), ts, '.b', label=f'runtime: {rt:.1f} min')
    plt.xlabel('entry', ha='right', x=1)
    plt.ylabel('timestamp', ha='right', y=1)
    plt.legend()
    plt.savefig('./plots/ts_check.png', dpi=100)