v2::V2NIMConversation 成员列表

成员的完整列表，这些成员属于 v2::V2NIMConversation,包括所有继承而来的类成员

avatar	v2::V2NIMConversation
conversationId	v2::V2NIMConversation
createTime	v2::V2NIMConversation
groupIds	v2::V2NIMConversation
lastMessage	v2::V2NIMConversation
localExtension	v2::V2NIMConversation
mute	v2::V2NIMConversation
name	v2::V2NIMConversation
serverExtension	v2::V2NIMConversation
sortOrder	v2::V2NIMConversation
stickTop	v2::V2NIMConversation
type	v2::V2NIMConversation
unreadCount	v2::V2NIMConversation
updateTime	v2::V2NIMConversation