PowerShell Script Layout - Based on https://poshcode.gitbook.io/powershell-practice-and-style/introduction/readme and https://adamtheautomator.com/ppowershell-pipeline/

CodeLayout.ps1

<#
    .SYNOPSIS
        A brief description of the function or script
    .DESCRIPTION
        A longer description
    .NOTES
        Version:  yyyy.mm.dd
        Author:   Author Name
        Info:     Release Notes
#>
[cmdletBinding()]
param()

#region FUNCTIONS
function Test-Function
{
    [cmdletBinding()]
    param
    (
        [Parameter(ValueFromPipeline,ValueFromPipelinebyPropertyName)]
        [int[]]$MyVar = 0
    )
    begin
    {
        if ($PSBoundParameters['Debug']) { $DebugPreference = 'Continue' }
    }
    process
    {
        foreach ($variable in $MyVar)
        {
            Write-Debug "Testing $variable"
            if ($variable -eq 1)
            {
                $true
            }
            else
            {
                $false
            }
        }
    }
} # Test-Function
#endregion FUNCTIONS

#region DECLARATION
$Var = 1
#endregion DECLARATION

#region MAIN
Write-Host "Calling function with no argument: $(Test-Function)"
Write-Host "Calling function with argument value `$Var: $(Test-Function -MyVar $Var)"
Write-Host "First pipe test:"
0,1,2,"a" | Test-Function -Debug -ErrorAction SilentlyContinue
Write-Host "Second pipe test:"
Test-Function -MyVar -1,0,1
#endregion MAIN