def METHOD_NAME():
    class BaseSection(MSection):
        test_quantity = Quantity(type=str)
    class Section(BaseSection):
        pass
    assert 'test_quantity' in Section.m_def.all_properties
    assert Section.test_quantity == BaseSection.test_quantity
    section = Section(test_quantity='test_value')
    assert section.test_quantity == 'test_value'
    assert section.m_to_dict()['test_quantity'] == 'test_value'