Kinect for Azure python interface. How to get image timestamp

I need to synchronize the images with an external odometry input. But I can't find a way to get to the sensor image timestamps in the python interface.

In the cpp api(open3d/io/sensor/azure_kinect/AzureKinectSensor.cpp) it looks like I could do something like this:

```
k4a_capture_t capture = CaptureRawFrame();
k4a_image_t depth_image = k4a_capture_get_depth_image(capture);

# timestamps retrieved
uint64_t image_device_timestamp = k4a_image_get_device_timestamp_usec (depth_image);
uint64_t image_system_timestamp = k4a_image_get_system_timestamp_nsec (depth_image);

# The RGDB image type retrieved
auto rgbd = DecompressCapture( capture, true);

k4a_plugin::k4a_capture_release(capture);
```

If above looks right for the cpp interface, how could I achieve the same with the python interface?