def rollback(self):
    self.CheckOpen()
    request = sql_pb2.ExecOpRequest()
    request.op.type = client_pb2.OpProto.ROLLBACK
    self.MakeRequest('ExecOp', request)
Alternative version of @java_method that takes JavaClass
dataset/ETHPy150Open AppScale/appscale/AppServer/google/storage/speckle/python/api/rdbms.py/Connection.rollback--crossover with--dataset/ETHPy150Open kivy/pyjnius/jnius/signatures.py/with_signature