auto vs explicit unboxing.

asdasd.php

<?php

// a function in the email api library we're using.
function sendEmail(string $email, string $body, string $subject) {}

// A function in our application
function foo(EmailString $es, NameString $ns)
{
	$body = "Hello " . $ns;
	sendEmail($es, $body, "howdy");	
}

// vs A function in our application with unboxing.
function foo(EmailString $es, NameString $ns)
{
	$body = "Hello " . $ns->unbox();
	sendEmail($es->unbox(), $body, "howdy");	
}