Arango.Client.DictionaryExtensions.Key C# (CSharp) Метод

        public static string Key(this Dictionary<string, object> dictionary)
        {
            string key;

            try
            {
                key = String(dictionary, "_key");

                if (!ADocument.IsKey(key))
                {
                    key = null;
                }
            }
            catch (Exception)
            {
                key = null;
            }

            return key;
        }