code: def str(password,
          opslimit=OPSLIMIT_INTERACTIVE,
          memlimit=MEMLIMIT_INTERACTIVE):
      
      return nacl.bindings.crypto_pwhash_str_alg(password,
                                                 opslimit,
                                                 memlimit,
                                                 ALG)
docs: Hashes a password with a random salt, using the memory-hard
      argon2i construct and returning an ascii string that has all
      the needed info to check against a future password
  
  
      The default settings for opslimit and memlimit are those deemed
      correct for the interactive user login case.
  
      :param bytes password:
      :param int opslimit:
      :param int memlimit:
      :rtype: bytes
  
      .. versionadded:: 1.2