# File soap/wsdlDriver.rb, line 516
      def Mapper.find_attribute(obj, attr_name)
        if obj.respond_to?(attr_name)
          obj.__send__(attr_name)
        elsif obj.is_a?(Hash)
          obj[attr_name] || obj[attr_name.intern]
        else
          obj.instance_eval("@#{ attr_name }")
        end
      end

# File soap/wsdlDriver.rb, line 497
      def initialize(elements, types)
        @elements = elements
        @types = types
      end

# File soap/wsdlDriver.rb, line 512
      def ele2obj(ele, *arg)
        raise NotImplementedError.new
      end

# File soap/wsdlDriver.rb, line 502
      def obj2ele(obj, name)
        if ele = @elements[name]
          _obj2ele(obj, ele)
        elsif type = @types[name]
          obj2type(obj, type)
        else
          raise MappingError.new("Cannot find name #{name} in schema.")
        end
      end