IronRuby 0.4.0.0 on .NET 2.0.50727.4918
Copyright (c) Microsoft Corporation. All rights reserved.

>>> load_assembly "test"
=> true
>>> source = open("data.xml")
=> #<File:data.xml>
>>> Test::Nrk.read(source)
C:\Development\ironruby\working-nrk\ndp\fx\src\Core\Microsoft\Scripting\Actions\DynamicMetaObjectBinder.cs:87:in `Bind': The result type 'System.Object' of the binder 'read(C,0)' is not compatible with the result type 'IronRuby.Builtins.MutableString' expected by the call site. (TypeError)
        from C:\Development\ironruby\working-nrk\ndp\fx\src\Core\Microsoft\Scripting\Actions\C
allSiteBinder.cs:79:in `BindDelegate'
        from :0:in `read'
        from :0