def instance_get(context, instance_id, columns_to_join=None):
    return IMPL.instance_get(context, instance_id,
                             columns_to_join=columns_to_join)
Raises ImportError when app does not have datasets package
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/db/api.py/instance_get--crossover with--dataset/ETHPy150Open henriquebastos/django-fixturapp/src/fixturapp/tests/test_common.py/TestCommon.test_raise_when_cant_get_datasets_for_emptyapp