holoviews.Table does not show data of PeriodicCallback function

Hi, i would like to show my stream data in holoviews table, also i am using callback function and write below codes:
self.buffer7.send(np.array([[scored.index[-1], scored.iloc[:, 5].mean()]]))# table

dmap7=hv.DynamicMap(hv.Table, streams=[op.buffer7])


you know i can plot data well, but the tabel’s data does not show in web.
could you please tell me what is the problem.
thank you