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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_empty(self):
 """ A group of modules is considered empty if it has no children or if all its children are empty. True True False """

        if super(Group, self).is_empty():
            return True
        for child in self.children:
            if not child.is_empty():
                return False
        return True