Support split encode/decoder mode, "mode B" #94

# to view logs

	name: ci
	on: [push, pull_request]
	jobs:
	testing:
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest]
	python-version: [3.8, 3.9, "3.10", "3.11"]
	steps:
	- uses: actions/checkout@v2
	with:
	submodules: 'recursive'

	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}

	- name: install dependencies
	run: \|
	pip install -r requirements.freeze
	pip install --upgrade coveralls

	- name: test
	run: coverage run -m unittest

	- name: report coverage
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	run: coveralls

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