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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 is_true(self, item=None):
 """ If you are filtering on object values, you need to pass that object here. """

        if item:
            values = [item]
        else:
            values = []
        self._get_item_and_att_names(*values)
        return self._passes_all