def unregister_class(class_):

    _instrumentation_factory.unregister(class_)
Get the URN type in un-escaped publicid format
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/sqlalchemy/orm/instrumentation.py/unregister_class--crossover with--dataset/ETHPy150Open fp7-ofelia/ocf/ofam/src/src/ext/geni/util/urn_util.py/URN.getType