docs: def gx_coords(node):
      """
      Given a KML DOM node, grab its <gx:coord> and <gx:timestamp><when>subnodes, and convert them into a dictionary with the keys and values
  
      - ``'coordinates'``: list of lists of float coordinates
      - ``'times'``: list of timestamps corresponding to the coordinates
  
      """
      els = get(node, 'gx:coord')
      coordinates = []
      times = []
      coordinates = [gx_coords1(val(el)) for el in els]
      time_els = get(node, 'when')
      times = [val(t) for t in time_els]
      return {
        'coordinates': coordinates,
        'times': times,
      }