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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 group(self, groupId):
 """ gets a group based on it's ID """

        url = "%s/%s" % (self.root, groupId)
        return Group(url=url,
                     securityHandler=self._securityHandler,
                     proxy_url=self._proxy_url,
                     proxy_port=self._proxy_port,
                     initalize=False)