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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 update_comment(self, comment_id, body):
 """ Update a specific comment. This can be used to edit the content of an existing comment. """

        path = '/msg/update_comment'
        req = ET.Element('request')
        ET.SubElement(req, 'comment_id').text = str(int(comment_id))
        comment = ET.SubElement(req, 'comment')
        ET.SubElement(comment, 'body').text = str(body)
        return self._request(path, req)