Remove redundant `ensure_datetime()` call #2478

	name: Type-check

	on:
	- push
	- pull_request

	jobs:
	typing:
	runs-on: ubuntu-latest
	steps:
	- name: Check out repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.8'

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install --upgrade tox

	- name: Run type checker
	run: tox -e typing

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