Fix `NoneType` error when querying SOA records (#42) #19

	name: CI
	on: [push, pull_request]
	jobs:
	build:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os:
	- ubuntu-latest
	- macos-latest
	- windows-latest
	python-version:
	- '3.8'
	- '3.9'
	- '3.10'
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Run CI
	run: \|
	python -m pip install --requirement requirements.txt
	python -m pip install --requirement requirements-dev.txt
	python -m pip install --editable .
	python -m flake8
	python -m pytest --cov

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