create a function based on a file (Second example doesn't work due to scoping issues)

ImportScriptAs-Function.ps1

### This works

    ## Content of C:\Plop.ps1
    Write-host "plop"

    # Code to import a script file as function

    $Content = Get-Content C:\plop.ps1 -raw
    $sb = [ScriptBlock]::Create($F)
    New-Item -Path function: -Name SayPlop -Value $sb -force

#As soon as we put this in a fucntion, it doesn't work anymore.


Function ImportScriptAs-Function {
    Param(
        [System.Io.fileInfo]$Path 

    )

    $Content = Get-Content $Path.FullNAme -Raw
    $sb = [ScriptBlock]::Create($Content)
    New-Item -Path function: -Name SayPlop -Value $sb -force

}

ImportScriptAs-Function -Path C:\Plop.ps1