fix typying for python 3.8 #67

	name: Run Pytest
	on:
	push:
	branches:
	- main
	- dev
	pull_request:
	branches:
	- main

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Install Python3
	uses: actions/setup-python@v1
	with:
	python-version: 3.9
	- name: Install dependencies
	run: \|
	python3 -m pip install --upgrade pip
	pip install -r requirements.txt
	pip install -r tests/requirements.txt
	- name: Run pytest
	run: pytest

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