# File lib/uri_template/utils.rb, line 253
    def object_to_param(object)
      if object.respond_to? :to_param
        object.to_param
      elsif object.respond_to? :to_s
        object.to_s
      else
        raise Unconvertable.new(object) 
      end
    rescue NoMethodError
      raise Unconvertable.new(object)
    end