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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 remove_consumer_tag(self, tag=None):
 """Remove a Consumer tag. If no tag is specified, all all tags will be removed. :param str|None tag: Consumer tag. :return: """

        if tag is not None:
            if tag in self._consumer_tags:
                self._consumer_tags.remove(tag)
        else:
            self._consumer_tags = []