Example PowerShell header

This is a good template header that I use for new PowerShell scripts:

<#
.SYNOPSIS
    This is what the script does.
.NOTES
    Author: Me
.PARAMETER AParameter
    A parameter.
.PARAMETER ASwitch
    A switch.
#>

$ErrorActionPreference = 'Stop'
Set-StrictMode -Version 3

param(
    [parameter(mandatory)][string]$AParameter, 
    [switch]$ASwitch)

$scriptFolder = (split-path -path $MyInvocation.MyCommand.Definition -Parent)