Seems like something broke in your dataflow update. Shows RuntimeError for me.

Oh, thanks for reporting. It seems that the static import must come first in the case there is also a dynamic import (I resolved it by making the dynamic one wait for the static one to be done, and it works)

see https://talk.observablehq.com/t/importcell-conflicts-with-static-import/4548

Fixed in https://observablehq.com/@mbostock/dataflow, thanks to @mootari and @mbostock.

this pattern has changed now, please switch to import {Histogram}, then use Histogram(randomArray)

Thanks for the notification! D3 charts are a good improvement