def METHOD_NAME(self):
    """
    Reads image from `video_last_image` attribute of lima device proxy,
    which is type of `bytes` and converts it into np.array of int.
    Returns
        raw_buffer : 1d np.array of np.uint16
            Image
        width : int
            Image width
        height : int
            Image height
    """
    img_data = self.device.video_last_image
    if img_data[0] == "VIDEO_IMAGE":
        raw_fmt = img_data[1][: self.header_size]
        raw_buffer = np.fromstring(img_data[1][self.header_size :], np.uint16)
        _, ver, img_mode, frame_number, width, height, _, _, _, _ = struct.unpack(
            self.header_fmt, img_data[1][: self.header_size]
        )
        return raw_buffer, width, height
    else:
        return None, 0, 0