add callback option to IO interface #628

	name: Spell Check with CSpell
	on:
	- pull_request

	jobs:
	run:
	name: Spell Check with Typos
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 2

	- name: Get changed files
	id: changed-files
	uses: tj-actions/changed-files@v42
	with:
	since_last_remote_commit: true

	- name: List all changed files
	env:
	ALL_CHANGED_FILES: ${{ steps.changed-files.outputs.all_changed_files }}
	run: \|
	for file in ${ALL_CHANGED_FILES}; do
	echo "File $file was changed"
	done

	- name: Spell checking
	uses: streetsidesoftware/cspell-action@v5
	with:
	files: ${{ steps.changed-files.outputs.all_changed_files }}
	verbose: true

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