emulate functions in foreach parallel

gistfile1.txt

# create the code usually written as function as scriptblock
# it can be run directly in the main script as any other scriptblock
$loopcode = {
    param($user,$counter)
    write-host ("User: {0} {1}" -f $user,$counter)
}

# convert the scriptblock to string to be able to reuse it in foreach -parallel
# functions cannot be used in foreach -parallel
$codestring = [string]$loopcode

# convert the string back to a scriptblock in the loop, add parameters as needed
1..10 | foreach -Parallel {
    & ([scriptblock]::Create($using:codestring)) 'me' $_
}