Dash Store component

I wonder if it is possible to somehow define which dtype is saved in the dcc.Store component. Because if i downcast my data, put it in the dcc.Store and get it back in a callback function the dtypes are alywys something like int64, float64 and object, instead of int8, float32…

Is thery any possibilty to control that, instead of downcasting it again and again in the callback functions?