Add init file to ions package, re-export classes #98

	name: Test
	on:
	push:
	pull_request:

	jobs:
	test:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v2

	- name: Install poetry
	run: python -m pip install poetry==1.3.2 poethepoet==0.10.0

	- name: Install dependencies
	run: poetry install

	- name: Check formatting
	run: poe fmt-test

	- name: Check syntax
	run: poe flake

	- name: Run tests
	run: poe test

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