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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def field_pklist_from_json(self, data):
 """Load a PkOnlyQueryset from a JSON dict. This uses the same format as cached_queryset_from_json """

        model = get_model(data['app'], data['model'])
        return PkOnlyQueryset(self, model, data['pks'])