Utils#Multiset: Redefine `get` to remove `undefined` return (#10329) #4

	name: Publish to npm
	on:
	push:
	branches:
	- master
	paths:
	- 'package.json'
	jobs:
	test:
	uses: ./.github/workflows/test.yml
	get-version:
	runs-on: ubuntu-latest
	outputs:
	current_version: ${{ steps.current_version.outputs.version }}
	last_version: ${{ steps.last_version.outputs.version }}
	token_exists: ${{ steps.check_token.outputs.token }}
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 50
	# Check if the package.json version field has changed since the last push
	- name: Get current version from package.json
	id: current_version
	run: \|
	echo "version=$(jq -r .version package.json)" >> $GITHUB_OUTPUT
	- name: Get the version from the last push
	id: last_version
	run: \|
	git checkout ${{ github.event.before }}
	echo "version=$(jq -r .version package.json)" >> $GITHUB_OUTPUT
	- name: Check if NPM_TOKEN exists
	id: check_token
	run: \|
	echo "token=$(if [ -n "${{ secrets.NPM_TOKEN }}" ]; then echo true; else echo false; fi)" >> $GITHUB_OUTPUT
	npm-publish:
	needs:
	- test
	- get-version
	runs-on: ubuntu-latest
	# We only want to publish if the package.json version field has changed
	if: needs.get-version.outputs.current_version != needs.get-version.outputs.last_version && needs.get-version.outputs.token_exists == 'true'
	steps:
	- uses: actions/checkout@v3
	- uses: actions/setup-node@v3
	with:
	node-version: 18
	cache: 'npm'
	registry-url: 'https://registry.npmjs.org'
	- run: npm ci
	- run: npm run build
	- run: npm publish
	env:
	NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

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