Add "print" parameter to parse output from get-slot #4

	name: YAPF Formatting Check
	on: [pull_request]
	jobs:
	formatting-check:
	name: Formatting Check
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: run YAPF to test if python code is correctly formatted
	uses: AlexanderMelde/yapf-action@master
	with:
	args: --verbose

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