python -m himawari.ahi2cmi -vv -d $HOME/Data/himawari/sample_bz2/HS_H08_20130710_0300_B16

Path, Value, Dimensions, Attributes approach
see goesr.rockfall.nc_write et al
requires much testing, but once it works we can use goesr SCMI generator with minor modifications

this correctly detects 10bpp and 1023 sentinel
still would like confirmation that this data even has a sentinel

tried it->data->bits_per_pixel (always 16)
and deriving from max count value
still need to figure out how to decide between 1023 and 16383 reliably.