Reintroduce `activate(f)` and `deactivate()` #33

	name: Format
	on:
	pull_request:
	paths:
	- "**.jl"
	- ".github/workflows/Format.yml"
	jobs:
	format:
	# These permissions are needed to:
	# - Checkout the repo
	# - Delete old caches: https://github.com/julia-actions/cache#usage
	# - Post formatting suggestions: https://github.com/reviewdog/action-suggester#required-permissions
	permissions:
	actions: write
	contents: read
	pull-requests: write
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: julia-actions/setup-julia@v2
	with:
	version: "1"
	- uses: julia-actions/cache@v2
	- name: Install JuliaFormatter
	shell: julia --color=yes {0}
	run: \|
	using Pkg
	Pkg.add(PackageSpec(name="JuliaFormatter", version="1"))
	- name: Check Formatting
	shell: julia --color=yes {0}
	run: \|
	using JuliaFormatter
	format("."; verbose=true)
	- uses: reviewdog/action-suggester@v1
	with:
	tool_name: JuliaFormatter
	fail_on_error: true

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