Table blank values in specific cell

Hello all. Iā€™m using the example given on plotly. I would like to have a blank cell.
Ex: cells=dict(values=[[BLANKCELL, 90, 80, 90], [95, 85, BLANKCELL, 95]])) .
I tried leaving it empty but , that would throw an error.

Appreciate the help.
Thanks.

import plotly.graph_objects as go

fig = go.Figure(data=[go.Table(header=dict(values=['A Scores', 'B Scores']),
                 cells=dict(values=[[100, 90, 80, 90], [95, 85, 75, 95]]))
                     ])
fig.show()