Originally written by Boe Prox, when loading a custom module this will source any scripts in the $ModulePath\Scripts folder, as well as check if you've loaded PowerShell as an Administrator.

CustomModule.psm1

#Validate user is an Administrator
Write-Verbose "Checking Administrator credentials"
If (-NOT ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) {
    Write-Warning "You are not running this as an Administrator!`nPlease re-run module with an Administrator Account."
    Break
}

#Load Functions
$ScriptPath = Split-Path $MyInvocation.MyCommand.Path
Try {
    Get-ChildItem "$ScriptPath\Scripts" | Select -Expand FullName | ForEach {
        $Function = Split-Path $_ -Leaf
        . $_
    }
} Catch {
    Write-Warning ("{0}: {1}" -f $Function,$_.Exception.Message)
    Continue
}