def get_topic_attributes
      topic_hash = Hash.from_xml(Request::Xml.get(topic_path))
      {
          topic_name: topic_hash["Topic"]["TopicName"],
          create_time: topic_hash["Topic"]["CreateTime"],
          last_modify_time: topic_hash["Topic"]["LastModifyTime"],
          maximum_message_size: topic_hash["Topic"]["MaximumMessageSize"],
          message_retention_period: topic_hash["Topic"]["MessageRetentionPeriod"],
          message_ount: topic_hash["Topic"]["MessageCount"],
          logging_enabled: topic_hash["Topic"]["LoggingEnabled"]
      }

    end
def get_topic_attributes
      topic_hash = Hash.from_xml(Request::Xml.get(topic_path))
      {
          topic_name: topic_hash["Topic"]["TopicName"],
          create_time: topic_hash["Topic"]["CreateTime"],
          last_modify_time: topic_hash["Topic"]["LastModifyTime"],
          maximum_message_size: topic_hash["Topic"]["MaximumMessageSize"],
          message_retention_period: topic_hash["Topic"]["MessageRetentionPeriod"],
          message_ount: topic_hash["Topic"]["MessageCount"],
          logging_enabled: topic_hash["Topic"]["LoggingEnabled"]
      }

    end
获取topic属性