def prepare_query_value(self, op, value):
        if op in UPDATE_OPERATORS:
            self.validate(value)
        return value
del TOS[:]
dataset/ETHPy150Open MongoEngine/mongoengine/mongoengine/base/fields.py/BaseField.prepare_query_value--crossover with--dataset/ETHPy150Open numba/numba/numba/dataflow.py/DataFlowAnalysis.op_DELETE_SLICE_0