VkNet.Categories.MessagesCategory.SetActivity C# (CSharp) Méthode

        public bool SetActivity(long userId, long? peerId = null)
        {
            var parameters = new VkParameters
            {
                { "used_id", userId },
                { "type", "typing" },
                { "peer_id", peerId }
            };

            return _vk.Call("messages.setActivity", parameters);
        }

 public void SetActivity_AccessTokenInvalid_ThrowAccessTokenInvalidException()
 {
     var cat = new MessagesCategory(new VkApi());
     cat.SetActivity(1);
 }