class AWS::Core::XML::Grammar

def apply_customizations customizations
  customizations.each do |item|
    (type, identifier, args) = parse_customization_item(item)
    case type
    when :method
      validate_config_method(identifier)
      validate_args(identifier, args)
      send(identifier, *args)
    when :element
      element(identifier) do
        apply_customizations(args)
      end
    end
  end
end