docs: def add_image(self, image_path, annotations):
      """Adds an image and its bounding boxes to the current list of files
  
      The bounding boxes are automatically estimated based on the given annotations.
  
      **Parameters:**
  
      ``image_path`` : str
        The file name of the image, including its full path
  
      ``annotations`` : [dict]
        A list of annotations, i.e., where each annotation can be anything that :py:func:`bounding_box_from_annotation` can handle; this list can be empty, in case the image does not contain any faces
      """
      self.image_paths.append(image_path)
      self.bounding_boxes.append([bounding_box_from_annotation(**a) for a in annotations])