make sure the .get_duration altgorithm accepts dates vs time in due/d… #500

	---
	name: tests
	on:
	push:
	branches:
	- master
	pull_request:
	branches:
	- master
	jobs:
	tests:
	name: ${{ matrix.python }}
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python:
	- '3.12'
	- '3.11'
	- '3.10'
	- '3.9'
	- '3.8'
	- '3.7'
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python }}
	- uses: actions/cache@v1
	with:
	path: ~/.cache/pip
	key: pip\|${{ hashFiles('setup.py') }}\|${{ hashFiles('tox.ini') }}
	- run: pip install tox
	- run: tox -e py
	docs:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	with:
	python-version: '3.12'
	- uses: actions/cache@v1
	with:
	path: ~/.cache/pip
	key: pip\|${{ hashFiles('setup.py') }}\|${{ hashFiles('tox.ini') }}
	- run: pip install tox
	- run: tox -e docs
	style:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	with:
	python-version: '3.12'
	- uses: actions/cache@v1
	with:
	path: ~/.cache/pip
	key: pip\|${{ hashFiles('setup.py') }}\|${{ hashFiles('tox.ini') }}
	- uses: actions/cache@v1
	with:
	path: ~/.cache/pre-commit
	key: pre-commit\|${{ hashFiles('.pre-commit-config.yaml') }}
	- run: pip install tox
	- run: tox -e style

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