def create_delete_op_chain(object, parent=(None, None)):
    ops = vistrails.db.services.action.create_delete_op_chain(object, parent)
    convert_operation_list(ops)
    return ops
create_delete_op_chain(object: object, 
dataset/ETHPy150Open VisTrails/VisTrails/vistrails/core/db/io.py/create_delete_op_chain