lo5

# ===
# About: Back button and state handling demo
# Author: Prithvi Prabhu <prithvi.prabhu@gmail.com>
# License: Apache-2.0
# Source: https://github.com/h2oai/nitro/py/examples
# Keywords: [basic, flask]
#
# Setup:
# FILE requirements.txt EOF
# flask

lo5

from typing import List, Optional


class Operation:
    def __init__(self, do, undo):
        self.do = do
        self.undo = undo


class BatchOperation(Operation):

lo5

# ===
# About: A canonical to-do list using H2O Wave
# Author: Prithvi Prabhu <prithvi.prabhu@gmail.com>
# License: Apache-2.0
# Source: https://github.com/h2oai/wave/py/examples
# Setup:
# RUN python -m pip install h2o-wave
# START python -m h2o_wave run wave_todo_list.py
# ===