docs: def cuid(self):
          """
          Generate a full-length cuid as a string.
          """
          # start with a hardcoded lowercase c
          identifier = "c"
          # add a timestamp in milliseconds since the epoch, in base 36
          millis = int(time.time() * 1000)
          identifier += _to_base36(millis)
          # use a counter to ensure no collisions on the same machine
          # in the same millisecond
          count = _pad(_to_base36(self.counter), BLOCK_SIZE)
          identifier += count
          # add the process fingerprint
          identifier += self.fingerprint
          # add a couple of random blocks
          identifier += _random_block()
          identifier += _random_block()
  
          return identifier