class Aws::Query::EC2Handler

def apply_params(param_list, params, rules)
  Aws::Query::EC2ParamBuilder.new(param_list).apply(rules, params)
end

def parse_xml(context)
  if (rules = context.operation.output)
    parser = Xml::Parser.new(rules)
    parser.parse(xml(context)) do |path, value|
      if path.size == 2 && path.last == 'requestId'
        context.metadata[:request_id] = value
      end
    end
  else
    EmptyStructure.new
  end
end