codepersononline

#1. in your logging module, you could have a function like this that takes a dependency called Destination.
function Write-ToLog{
param(
    [Parameter(Mandatory=$true)] $Destination, 
    [Parameter(Mandatory=$true)] [System.String] $Message
)
    try {
        $Destination.Write()
    } 
    catch {

codepersononline

<# Author: Steve Rathbone
May 2015
#>

$sb = {
    [string]$myPrivateVariable = "Hello World!"

    function Say-HelloWorld([string]$s) {
        write-output $s
    }

codepersononline

#this is in no way production ready code that should be used in a live system, 
#however it explains the basic elements that make the connection possible.

import clr, System
clr.AddReference("System.Management.Automation")
from System.Management.Automation import Runspaces

myrunspace = Runspaces.RunspaceFactory.CreateRunspace()
myrunspace.Open()
pipeline = myrunspace.CreatePipeline()

codepersononline

#The string "foo" below explicitly states that $obj is instantiated with a real .NET concrete type (String) underneath,
#and that the object $obj is subsequently turned into a new type of PSObject and is not a new extension method applied to the
#string class. 

$obj = "foo" | Add-Member -MemberType ScriptMethod -Value { 
	param( $first, $second) 
	"first is $first, second is $second" 
} 
-Name DoStuff -PassThru; $obj.DoStuff('abc', '123')

codepersononline

$psise.CurrentFile | Add-Member ScriptMethod "GetFileExtension" {return [System.IO.Path]::GetExtension($psISE.CurrentFile.DisplayName)}