Added presence operators #4

	name: Go

	on:
	push:
	branches: [ "main" ]
	pull_request:
	branches: [ "main" ]

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	go-version: ['1.21.x', '1.22.x']
	steps:
	- uses: actions/checkout@v4
	- name: Set up Go ${{ matrix.go-version }}
	uses: actions/setup-go@v4
	with:
	go-version: ${{ matrix.go-version }}
	- name: Build
	run: go build -v ./...
	- name: Format Check
	run: test $(gofmt -l . \| wc -l) -eq 0 \|\| exit 1
	- name: Test
	run: go test -v ./...

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