def migration_get_by_instance_and_status(context, instance_uuid, status):
    return IMPL.migration_get_by_instance_and_status(context, instance_uuid,
            status)
Return an r x c matrix of zeros, square if c is omitted.
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/db/api.py/migration_get_by_instance_and_status--crossover with--dataset/ETHPy150Open sympy/sympy/sympy/matrices/dense.py/DenseMatrix.zeros