class Tilt::RadiusTemplate

def self.context_class
  @context_class ||= Class.new(Radius::Context) do
    attr_accessor :tilt_scope
    def tag_missing(name, attributes)
      tilt_scope.__send__(name)
    end
    def dup
      i = super
      i.tilt_scope = tilt_scope
      i
    end
  end
end