public static async Task<T> Fetch<T>(string url, FetchOptions options = null)
        {
            if (options==null)
            {
                options = new FetchOptions()
                {
                    Body = null,
                    Authorization = null,
                    Method = "GET"
                };
            }
            using(var request = new HttpRequestMessage(new HttpMethod(options.Method), url))
            {
                if (options.Body != null)
                {
                    request.Content = new StringContent(JsonSerializer.Serialize(options.Method), Encoding.UTF8, "application/json");
                }
                if (options.Method==null)options.Method = "GET";
                if (!string.IsNullOrEmpty(options.Authorization))
                {
                    request.Headers.Add("Authorization", $"Bearer {options.Authorization}"); //Returns correct token
                }
                var response = await _client.SendAsync(request);
                response.EnsureSuccessStatusCode(); //401
                string json = await response.Content.ReadAsStringAsync();
                if (string.IsNullOrEmpty(json))
                {
                    return default;
                }
                try
                {
                    return JsonSerializer.Deserialize<T>(json, new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
                }
                catch (JsonException ex)
                {
                    throw new InvalidOperationException("Failed to deserialize response", ex);
                }
            }
        }