public async Task<BoxGroup> GetGroupAsync(string id, List<string> fields = null) { id.ThrowIfNullOrWhiteSpace("id"); BoxRequest request = new BoxRequest(_config.GroupsEndpointUri, id) .Param(ParamFields, fields); IBoxResponse<BoxGroup> response = await ToResponseAsync<BoxGroup>(request).ConfigureAwait(false); return response.ResponseObject; }