Start-Job /Passing Value Inside Script Block

$ini='$var="'+$args[0]+'"'
$a={
 Function Get-add()
        {
        "this  is the value of $var"

        }
 }
start-job -InitializationScript $a -ScriptBlock {param($ini)iex $ini;get-add } -ArgumentList $ini |Wait-Job | Receive-Job