MessageAction chat_without_owner_admins

[ivanmem]

"ClassName": "Newtonsoft.Json.JsonSerializationException",
"Message": "Error converting value "chat_without_owner_admins" to type 'System.Nullable`1[VkNet.Enums.StringEnums.MessageAction]'. Path 'message.action.type', line 29, position 41.",
"Data": null,
"InnerException": {
"ClassName": "System.ArgumentException",
"Message": "Requested value 'chat_without_owner_admins' was not found.",

https://dev.vk.com/ru/reference/objects/message#action
В доке еще нет