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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 cleanse(self):
 """Clean up some terms, like ensuring that the name is a slug"""

        from .util import slugify

        self.ensure_identifier()

        try:
            self.update_name()
        except MetatabError:

            identifier = self['Root'].find_first('Root.Identifier')

            name = self['Root'].find_first('Root.Name')

            if name and name.value:
                name.value = slugify(name.value)
            elif name:
                name.value = slugify(identifier.value)
            else:
                self['Root'].get_or_new_term('Root.Name').value = slugify(identifier.value)