code: def save_ewif_file(self, path: str, password: str) -> None:
          
          # version
          version = 1
  
          # add version to seed
          salt = libnacl.crypto_hash_sha256(
              libnacl.crypto_hash_sha256(
                  Base58Encoder.decode(self.pubkey)))[0:4]
  
          # SCRYPT
          password_bytes = password.encode("utf-8")
          scrypt_seed = scrypt(password_bytes, salt, 16384, 8, 8, 64)
          derivedhalf1 = scrypt_seed[0:32]
          derivedhalf2 = scrypt_seed[32:64]
  
          # XOR
          seed1_xor_derivedhalf1_1 = bytes(xor_bytes(self.seed[0:16], derivedhalf1[0:16]))
          seed2_xor_derivedhalf1_2 = bytes(xor_bytes(self.seed[16:32], derivedhalf1[16:32]))
  
          # AES
          aes = pyaes.AESModeOfOperationECB(derivedhalf2)
          encryptedhalf1 = aes.encrypt(seed1_xor_derivedhalf1_1)
          encryptedhalf2 = aes.encrypt(seed2_xor_derivedhalf1_2)
  
          # add format to final seed (1=WIF,2=EWIF)
          seed_bytes = b'\x02' + salt + encryptedhalf1 + encryptedhalf2
  
          # calculate checksum
          sha256_v1 = libnacl.crypto_hash_sha256(seed_bytes)
          sha256_v2 = libnacl.crypto_hash_sha256(sha256_v1)
          checksum = sha256_v2[0:2]
  
          # B58 encode final key string
          ewif_key = Base58Encoder.encode(seed_bytes + checksum)
  
          # save file
          with open(path, 'w') as fh:
              fh.write(
                  """Type: EWIF
  Version: {version}
  Data: {data}""".format(version=version, data=ewif_key)
              )
docs: Save an Encrypted Wallet Import Format file (WIF v2)
  
          :param path: Path to file
          :param password: