def backwards(self, orm):
Gives the server's API version
dataset/ETHPy150Open mozilla/moztrap/moztrap/model/core/migrations/0005_add_manage_products_permission_for_test_managers.py/Migration.backwards--crossover with--dataset/ETHPy150Open pycassa/pycassa/pycassa/system_manager.py/SystemManager.describe_version