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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 _take_values(self, item: Node) -> DictBasicType: """Takes snapshot of the object and replaces _parent property value on None to avoid infitinite recursion in GPflow tree traversing. :param item: GPflow node object. :return: dictionary snapshot of the node object."""


        values = super()._take_values(item)
        values['_parent'] = None
        return values