public async void GetDeviceGroupDataSources()
{
var deviceGroup = await PortalClient.GetDeviceGroupByFullPathAsync(DeviceGroupFullPath).ConfigureAwait(false);
Assert.NotNull(deviceGroup);
var deviceGroupDataSources = await PortalClient.GetAllDeviceGroupDataSourcesAsync(deviceGroup.Id).ConfigureAwait(false);
Assert.NotEmpty(deviceGroupDataSources);
}