add self.classes_ #16

	name: Cron Test Dependencies

	on: [push]

	jobs:
	cron:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	python-version: [3.8]
	os: [macos-10.15, ubuntu-latest, windows-latest]
	pre-release-dependencies: ["--pre", ""]
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v1
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies -
	run: \|
Check failure on line 20 in .github/workflows/cron.yml View workflow run for this annotation GitHub Actions / Cron Test Dependencies Invalid workflow file `The workflow is not valid. .github/workflows/cron.yml (Line: 20, Col: 12): Unrecognized named-value: 'pre-release-dependencies'. Located at position 1 within expression: pre-release-dependencies`
	python -m pip install --upgrade pip
	pip install ${{pre-release-dependencies}} human-learn
	pip freeze
	- name: Test with pytest
	run: \|
	pip install -e ".[test]"
	pytest

Provide feedback