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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 filter(self, obj, *args, **kwargs):
 """ Filter the given object through the filter chain. :param obj: The object to filter :param args: Additional arguments to pass to each filter function. :param kwargs: Additional keyword arguments to pass to each filter function. :return: The filtered object or :data:`None` See the documentation of :class:`Filter` on how filtering operates. Returns the object returned by the last function in the filter chain or :data:`None` if any function returned :data:`None`. """

        for _, _, func in self._filter_order:
            obj = func(obj, *args, **kwargs)
            if obj is None:
                return None
        return obj