# File lib/sinatra/respond_to.rb, line 142
        def render(*args, &block)
          assumed_layout = args[1] == :layout
          args[1] = "#{args[1]}.#{format}".to_sym if args[1].is_a?(::Symbol)
          render_without_format *args, &block
        rescue Errno::ENOENT => e
          raise MissingTemplate, "#{args[1]}.#{args[0]}" unless assumed_layout
          raise e
        end