成员的完整列表，这些成员属于 com.netease.nimlib.sdk.chatroom.model.ChatRoomNotificationAttachment,包括所有继承而来的类成员

fromJson(String json)	com.netease.nimlib.sdk.msg.attachment.NotificationAttachment
getExtension()	com.netease.nimlib.sdk.chatroom.model.ChatRoomNotificationAttachment
getOperator()	com.netease.nimlib.sdk.chatroom.model.ChatRoomNotificationAttachment
getOperatorNick()	com.netease.nimlib.sdk.chatroom.model.ChatRoomNotificationAttachment
getTags()	com.netease.nimlib.sdk.chatroom.model.ChatRoomNotificationAttachment
getTargetNicks()	com.netease.nimlib.sdk.chatroom.model.ChatRoomNotificationAttachment
getTargets()	com.netease.nimlib.sdk.chatroom.model.ChatRoomNotificationAttachment
getType()	com.netease.nimlib.sdk.msg.attachment.NotificationAttachment
parse(JSONObject json)	com.netease.nimlib.sdk.chatroom.model.ChatRoomNotificationAttachment
setType(NotificationType type)	com.netease.nimlib.sdk.msg.attachment.NotificationAttachment
toJson(boolean send)	com.netease.nimlib.sdk.msg.attachment.NotificationAttachment
toString()	com.netease.nimlib.sdk.chatroom.model.ChatRoomNotificationAttachment