# File lib/aws/sqs/queue.rb, line 116
      def send_message body, options = {}

        client_opts = options.dup
        client_opts[:queue_url] = url
        client_opts[:message_body] = body

        response = client.send_message(client_opts)
        
        msg = SentMessage.new
        msg.message_id = response[:message_id]
        msg.md5 = response[:md5_of_message_body]

        verify_send_message_checksum body, msg.md5
        
        msg

      end