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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_from_database(self):
 """Updates map to latest state in database. Should be called prior to major object events to assure that an assessment being taken on multiple devices are reasonably synchronized. """

        collection = JSONClientValidated('assessment',
                                         collection='AssessmentSection',
                                         runtime=self._runtime)
        self._my_map = collection.find_one({'_id': self._my_map['_id']})