ReadonlyfinalCells at the end of the last step, in billions. This is what gets pitched.
ReadonlyfromCells the packs alone would have supplied, billion.
ReadonlynameThe culture the starter is built from.
ReadonlystepsEach step, in order. Step one is pitched with the packs' viable cells.
One culture's starter, grown.
The steps are the model's own StarterYields, in order, so a caller can show the flask sizes, the inoculation rates and the cells at each stage without recomputing anything.