docs: def add_from_db(self, database, files):
      """Adds images and bounding boxes for the given files of a database that follows the :py:ref:`bob.bio.base.database.BioDatabase <bob.bio.base>` interface.
  
      **Parameters:**
  
      ``database`` : a derivative of :py:class:`bob.bio.base.database.BioDatabase`
        The database interface, which provides file names and annotations for the given ``files``
  
      ``files`` : :py:class:`bob.bio.base.database.BioFile` or compatible
        The files (as returned by :py:meth:`bob.bio.base.database.BioDatabase.objects`) which should be added to the training list
      """
      for f in files:
        annotation = database.annotations(f)
        image_path = database.original_file_name(f)
        self.add_image(image_path, [annotation])