<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def unscale_dict_wet(C):
 """Undo the scaling applied in `scale_dict_wet`."""

    return {k: _scale_dict[k] * v for k, v in C.items()}