Fix build #68

	# on:
	# push:
	# tags:
	# - '*'

	# jobs:
	# test:
	# name: test-notebook-${{matrix.config.name}}
	# runs-on: ${{matrix.config.os}}
	# strategy:
	# matrix:
	# config:
	# - {name: x86_64-macos, os: macos-latest}
	# - {name: x86_64-linux, os: ubuntu-latest}
	# - {name: x86_64-windows, os: windows-latest}

	# steps:
	# - uses: actions/checkout@v2

	# - name: Setup Python
	# uses: actions/setup-python@v2
	# with:
	# python-version: 3.7

	# - name: Install dependencies
	# run: pip install --upgrade pip && pip install jupyterlab pytest nbmake

	# - name: Run tests
	# run: pytest --nbmake examples/user_guide
	# env:
	# PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION: python

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