Use masks to differentiate between versions of a struct #10127

	name: Lint

	on: [ push, pull_request ]

	jobs:
	lint:
	name: Lint
	runs-on: ubuntu-latest
	steps:

	- name: Set up Go
	uses: actions/setup-go@v2
	with:
	go-version: ^1.15
	id: go

	- name: Checkout
	uses: actions/checkout@v2

	- name: Vet
	run: go vet ./...

	- name: Verify go.mod is tidy
	run: \|
	go mod tidy
	if ! git diff --quiet go.mod go.sum ; then
	echo -e "\033[1;31mGo mod files are not tidy. Please run \`go mod tidy\`.\033[0m"
	false
	fi

	- name: Verify generated files are up to date
	run: \|
	go generate ./...
	if ! git diff --quiet ; then
	echo -e "\033[1;31mGenerated files are not up to date. Please run \`go generate ./...\`.\033[0m"
	false
	fi

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