Trying to send an email with GlideEmailOutbound()

Hoping for a little help here. I'm trying to use GlideEmailOutbound() to send an email. It works from the global scope, but I get the error com.glide.script.RhinoEcmaError: Cannot find function addRecipient in object when using it from my scoped application.

var mail = new GlideEmailOutbound();
mail.setSubject("Subject");
mail.addRecipient("me@example.com");
mail.setBody("Body");
mail.save();

Looks to me like the global scope has access to a different version than my scoped application. Is there a way to get access to the global version from within my scoped app?