Hi r/PowerShell

I have a main script that runs continuously (ParentScope.ps1) and periodically invokes another script (ChildScope.ps1) with Invoke-Expression. The first time it does this, it initializes some things, and loads some functions with dot sourcing another file (Load-Functions.ps1).

ParentScope:

foreach ($n in (0..1)) {

    Invoke-Expression -Command .\\ChildScope.ps1

}

ChildScope:

if ($n -eq 0) {

    Write-Verbose "dot source Load-Functions.ps1" -Verbose

    . ".\Load-Functions.ps1"

}
else {

    Write-Verbose "Trying to use function My-Function" -Verbose
    My-Function

}

Load-Functions:

Function My-Function {

    "Hello!"

}

Write-Verbose ("Dot Sourced My-Function") -Verbose

Since Invoke-Expression always created a new scope, the function My-Function isn't available anymore when I try to run it the second time.

How can I add the function to the parent scope? I'm aware that I could just dot source the function in ParentScope.ps1 but I don't want to do that.

Thanks