docs: def _remove_geo_placeholders(l):
      """
      Remove placeholders from coordinate lists and sort
      :param list l: Lat or long list
      :return list: Modified list
      """
      vals = []
      for i in l:
          if isinstance(i, list):
              for k in i:
                  if isinstance(k, float) or isinstance(k, int):
                      vals.append(k)
          elif isinstance(i, float) or isinstance(i, int):
              vals.append(i)
      vals.sort()
      return vals