code: public function calculateLmResponse(
          HashCredentialInterface $hash_credential,
          $client_challenge = null,
          $server_challenge_nonce = null
      ) {
          return $this->calculateChallengeResponseData($hash_credential, $server_challenge_nonce);
      }
docs: Calculates the LM response.
  
  TODO: Remove this method as it's no longer necessary.
  
  @deprecated This logic is now a simple pass-through to
  {@link self::calculateChallengeResponseData()}.
  @param HashCredentialInterface $hash_credential The user's authentication
  LM hash credential.
  @param string|null $client_challenge A randomly generated 64-bit (8-byte)
  unsigned client-generated binary string.
  @param string|null $server_challenge_nonce The 64-bit (8-byte) unsigned
  server-sent "nonce" (number used once) represented as a binary string.
  @return string The calculated response as a binary string.