成员的完整列表，这些成员属于 com.netease.nimlib.sdk.v2.topic.option.V2NIMTopicMessageListOption,包括所有继承而来的类成员

getAnchorMessage()	com.netease.nimlib.sdk.v2.topic.option.V2NIMTopicMessageListOption
getBeginTime()	com.netease.nimlib.sdk.v2.topic.option.V2NIMTopicMessageListOption
getDirection()	com.netease.nimlib.sdk.v2.topic.option.V2NIMTopicMessageListOption
getEndTime()	com.netease.nimlib.sdk.v2.topic.option.V2NIMTopicMessageListOption
getLimit()	com.netease.nimlib.sdk.v2.topic.option.V2NIMTopicMessageListOption
getSortOrder()	com.netease.nimlib.sdk.v2.topic.option.V2NIMTopicMessageListOption
getTopic()	com.netease.nimlib.sdk.v2.topic.option.V2NIMTopicMessageListOption
isValid()	com.netease.nimlib.sdk.v2.topic.option.V2NIMTopicMessageListOption
isValidWithErrorMsg()	com.netease.nimlib.sdk.v2.topic.option.V2NIMTopicMessageListOption
V2NIMTopicMessageListOption(V2NIMTopic topic, long beginTime, long endTime, V2NIMMessage anchorMessage, int limit, V2NIMQueryDirection direction, V2NIMSortOrder sortOrder)	com.netease.nimlib.sdk.v2.topic.option.V2NIMTopicMessageListOption