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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 get_assessment_section(section_id, runtime=None, proxy=None):
 """Gets a Section given a section_id"""

    from .mixins import LoadedSection
    collection = JSONClientValidated('assessment',
                                     collection='AssessmentSection',
                                     runtime=runtime)
    result = collection.find_one(dict({'_id': ObjectId(section_id.get_identifier())}))
    return LoadedSection(osid_object_map=result, runtime=runtime, proxy=proxy)