def _get_assessment_part_collection(self, assessment_part_id):
collection = JSONClientValidated('<STR_LIT>',<EOL>collection='<STR_LIT>',<EOL>runtime=self._runtime)<EOL>assessment_part_map = collection.find_one({'<STR_LIT>': ObjectId(assessment_part_id.get_identifier())})<EOL>if '<STR_LIT>' not in assessment_part_map:<EOL><INDENT>raise errors.NotFound('<STR_LIT>')<EOL><DEDENT>return assessment_part_map, collection<EOL>
Returns a Mongo Collection and AssessmentPart given a AssessmentPart Id