code: def uuidify(val):
      
      if uuidutils.is_uuid_like(val):
          return val
      else:
          try:
              int_val = int(val, 16)
          except ValueError:
              with excutils.save_and_reraise_exception():
                  LOG.error("Invalid UUID format %s. Please provide an "
                            "integer in decimal (0-9) or hex (0-9a-e) "
                            "format", val)
          res = str(int_val)
          num = 12 - len(res)
          return "00000000-0000-0000-0000-" + "0" * num + res
docs: Takes an integer and transforms it to a UUID format.
  
      returns: UUID formatted version of input.