def set_load_from(self, load_from):
assert load_from is None or isinstance(load_from, Cache),"<STR_LIT>"<EOL>assert load_from is None or load_from.cl_size <= self.cl_size,"<STR_LIT>"<EOL>self.load_from = load_from<EOL>self.backend.load_from = load_from.backend<EOL>
Update load_from in Cache and backend.