How to use the @ethersproject/transactions.computeAddress function in @ethersproject/transactions

return __awaiter(this, void 0, void 0, function* () {
                const ciphertext = looseArrayify(searchPath(data, "crypto/ciphertext"));
                const computedMAC = hexlify(computeMAC(key.slice(16, 32), ciphertext)).substring(2);
                if (computedMAC !== searchPath(data, "crypto/mac").toLowerCase()) {
                    throw new Error("invalid password");
                }
                const privateKey = decrypt(key.slice(0, 16), ciphertext);
                const mnemonicKey = key.slice(32, 64);
                if (!privateKey) {
                    throw new Error("unsupported cipher");
                }
                const address = computeAddress(privateKey);
                if (data.address) {
                    let check = data.address.toLowerCase();
                    if (check.substring(0, 2) !== "0x") {
                        check = "0x" + check;
                    }
                    if (getAddress(check) !== address) {
                        throw new Error("address mismatch");
                    }
                }
                const account = {
                    _isKeystoreAccount: true,
                    address: address,
                    privateKey: hexlify(privateKey)
                };
                // Version 0.1 x-ethers metadata must contain an encrypted mnemonic phrase
                if (searchPath(data, "x-ethers/version") === "0.1") {

logger.checkNew(_newTarget, Wallet);
        _this = _super.call(this) || this;
        if (isAccount(privateKey)) {
            var signingKey_1 = new signing_key_1.SigningKey(privateKey.privateKey);
            properties_1.defineReadOnly(_this, "_signingKey", function () { return signingKey_1; });
            properties_1.defineReadOnly(_this, "address", transactions_1.computeAddress(_this.publicKey));
            if (_this.address !== address_1.getAddress(privateKey.address)) {
                logger.throwArgumentError("privateKey/address mismatch", "privateKey", "[REDCACTED]");
            }
            if (privateKey.mnemonic != null) {
                var mnemonic_1 = privateKey.mnemonic;
                var path = privateKey.path || hdnode_1.defaultPath;
                properties_1.defineReadOnly(_this, "_mnemonic", function () { return mnemonic_1; });
                properties_1.defineReadOnly(_this, "path", privateKey.path);
                var node = hdnode_1.HDNode.fromMnemonic(mnemonic_1).derivePath(path);
                if (transactions_1.computeAddress(node.privateKey) !== _this.address) {
                    logger.throwArgumentError("mnemonic/address mismatch", "privateKey", "[REDCACTED]");
                }
            }
            else {
                properties_1.defineReadOnly(_this, "_mnemonic", function () { return null; });
                properties_1.defineReadOnly(_this, "path", null);
            }
        }
        else {
            if (signing_key_1.SigningKey.isSigningKey(privateKey)) {
                if (privateKey.curve !== "secp256k1") {
                    logger.throwArgumentError("unsupported curve; must be secp256k1", "privateKey", "[REDACTED]");
                }
                properties_1.defineReadOnly(_this, "_signingKey", function () { return privateKey; });
            }
            else {

throw new Error("HDNode constructor cannot be called directly");
        }

        if (privateKey) {
            const signingKey = new SigningKey(privateKey);
            defineReadOnly(this, "privateKey", signingKey.privateKey);
            defineReadOnly(this, "publicKey", signingKey.compressedPublicKey);
        } else {
            defineReadOnly(this, "privateKey", null);
            defineReadOnly(this, "publicKey", hexlify(publicKey));
        }

        defineReadOnly(this, "parentFingerprint", parentFingerprint);
        defineReadOnly(this, "fingerprint", hexDataSlice(ripemd160(sha256(this.publicKey)), 0, 4));

        defineReadOnly(this, "address", computeAddress(this.publicKey));

        defineReadOnly(this, "chainCode", chainCode);

        defineReadOnly(this, "index", index);
        defineReadOnly(this, "depth", depth);

        defineReadOnly(this, "mnemonic", mnemonic);
        defineReadOnly(this, "path", path);
    }

if (isAccount(privateKey)) {
            const signingKey = new SigningKey(privateKey.privateKey);
            defineReadOnly(this, "_signingKey", () => signingKey);
            defineReadOnly(this, "address", computeAddress(this.publicKey));

            if (this.address !== getAddress(privateKey.address)) {
                logger.throwArgumentError("privateKey/address mismatch", "privateKey", "[REDCACTED]");
            }

            if (privateKey.mnemonic != null) {
                const mnemonic = privateKey.mnemonic;
                const path = privateKey.path || defaultPath;
                defineReadOnly(this, "_mnemonic", () => mnemonic);
                defineReadOnly(this, "path", privateKey.path);
                const node = HDNode.fromMnemonic(mnemonic).derivePath(path);
                if (computeAddress(node.privateKey) !== this.address) {
                    logger.throwArgumentError("mnemonic/address mismatch", "privateKey", "[REDCACTED]");
                }
            } else {
                defineReadOnly(this, "_mnemonic", (): string => null);
                defineReadOnly(this, "path", null);
            }


        } else {
            if (SigningKey.isSigningKey(privateKey)) {
                if (privateKey.curve !== "secp256k1") {
                    logger.throwArgumentError("unsupported curve; must be secp256k1", "privateKey", "[REDACTED]");
                }
                defineReadOnly(this, "_signingKey", () => privateKey);
            } else {
                const signingKey = new SigningKey(privateKey);

logger.checkNew(_newTarget, HDNode);
        if (constructorGuard !== _constructorGuard) {
            throw new Error("HDNode constructor cannot be called directly");
        }
        if (privateKey) {
            var signingKey = new signing_key_1.SigningKey(privateKey);
            properties_1.defineReadOnly(this, "privateKey", signingKey.privateKey);
            properties_1.defineReadOnly(this, "publicKey", signingKey.compressedPublicKey);
        }
        else {
            properties_1.defineReadOnly(this, "privateKey", null);
            properties_1.defineReadOnly(this, "publicKey", bytes_1.hexlify(publicKey));
        }
        properties_1.defineReadOnly(this, "parentFingerprint", parentFingerprint);
        properties_1.defineReadOnly(this, "fingerprint", bytes_1.hexDataSlice(sha2_1.ripemd160(sha2_1.sha256(this.publicKey)), 0, 4));
        properties_1.defineReadOnly(this, "address", transactions_1.computeAddress(this.publicKey));
        properties_1.defineReadOnly(this, "chainCode", chainCode);
        properties_1.defineReadOnly(this, "index", index);
        properties_1.defineReadOnly(this, "depth", depth);
        properties_1.defineReadOnly(this, "mnemonic", mnemonic);
        properties_1.defineReadOnly(this, "path", path);
    }
    Object.defineProperty(HDNode.prototype, "extendedKey", {

export function encrypt(account: ExternallyOwnedAccount, password: Bytes | string, options?: EncryptOptions, progressCallback?: ProgressCallback): Promise {

    try {
        if (getAddress(account.address) !== computeAddress(account.privateKey)) {
            throw new Error("address/privateKey mismatch");
        }

        if (account.mnemonic != null){
            const node = HDNode.fromMnemonic(account.mnemonic).derivePath(account.path || defaultPath);

            if (node.privateKey != account.privateKey) {
                throw new Error("mnemonic mismatch");
            }
        } else if (account.path != null) {
            throw new Error("cannot specify path without mnemonic");
        }

    } catch (e) {
        return Promise.reject(e);
    }

}
        }
        else {
            if (signing_key_1.SigningKey.isSigningKey(privateKey)) {
                if (privateKey.curve !== "secp256k1") {
                    logger.throwArgumentError("unsupported curve; must be secp256k1", "privateKey", "[REDACTED]");
                }
                properties_1.defineReadOnly(_this, "_signingKey", function () { return privateKey; });
            }
            else {
                var signingKey_2 = new signing_key_1.SigningKey(privateKey);
                properties_1.defineReadOnly(_this, "_signingKey", function () { return signingKey_2; });
            }
            properties_1.defineReadOnly(_this, "_mnemonic", function () { return null; });
            properties_1.defineReadOnly(_this, "path", null);
            properties_1.defineReadOnly(_this, "address", transactions_1.computeAddress(_this.publicKey));
        }
        if (provider && !abstract_provider_1.Provider.isProvider(provider)) {
            logger.throwArgumentError("invalid provider", "provider", provider);
        }
        properties_1.defineReadOnly(_this, "provider", provider || null);
        return _this;
    }
    Object.defineProperty(Wallet.prototype, "mnemonic", {

}


        } else {
            if (SigningKey.isSigningKey(privateKey)) {
                if (privateKey.curve !== "secp256k1") {
                    logger.throwArgumentError("unsupported curve; must be secp256k1", "privateKey", "[REDACTED]");
                }
                defineReadOnly(this, "_signingKey", () => privateKey);
            } else {
                const signingKey = new SigningKey(privateKey);
                defineReadOnly(this, "_signingKey", () => signingKey);
            }
            defineReadOnly(this, "_mnemonic", (): string => null);
            defineReadOnly(this, "path", null);
            defineReadOnly(this, "address", computeAddress(this.publicKey));
        }

        if (provider && !Provider.isProvider(provider)) {
            logger.throwArgumentError("invalid provider", "provider", provider);
        }

        defineReadOnly(this, "provider", provider || null);
    }

logger.checkNew(new.target, Wallet);
        super();
        if (isAccount(privateKey)) {
            const signingKey = new SigningKey(privateKey.privateKey);
            defineReadOnly(this, "_signingKey", () => signingKey);
            defineReadOnly(this, "address", computeAddress(this.publicKey));
            if (this.address !== getAddress(privateKey.address)) {
                logger.throwArgumentError("privateKey/address mismatch", "privateKey", "[REDCACTED]");
            }
            if (privateKey.mnemonic != null) {
                const mnemonic = privateKey.mnemonic;
                const path = privateKey.path || defaultPath;
                defineReadOnly(this, "_mnemonic", () => mnemonic);
                defineReadOnly(this, "path", privateKey.path);
                const node = HDNode.fromMnemonic(mnemonic).derivePath(path);
                if (computeAddress(node.privateKey) !== this.address) {
                    logger.throwArgumentError("mnemonic/address mismatch", "privateKey", "[REDCACTED]");
                }
            }
            else {
                defineReadOnly(this, "_mnemonic", () => null);
                defineReadOnly(this, "path", null);
            }
        }
        else {
            if (SigningKey.isSigningKey(privateKey)) {
                if (privateKey.curve !== "secp256k1") {
                    logger.throwArgumentError("unsupported curve; must be secp256k1", "privateKey", "[REDACTED]");
                }
                defineReadOnly(this, "_signingKey", () => privateKey);
            }
            else {

logger.checkNew(new.target, HDNode);
        if (constructorGuard !== _constructorGuard) {
            throw new Error("HDNode constructor cannot be called directly");
        }
        if (privateKey) {
            const signingKey = new SigningKey(privateKey);
            defineReadOnly(this, "privateKey", signingKey.privateKey);
            defineReadOnly(this, "publicKey", signingKey.compressedPublicKey);
        }
        else {
            defineReadOnly(this, "privateKey", null);
            defineReadOnly(this, "publicKey", hexlify(publicKey));
        }
        defineReadOnly(this, "parentFingerprint", parentFingerprint);
        defineReadOnly(this, "fingerprint", hexDataSlice(ripemd160(sha256(this.publicKey)), 0, 4));
        defineReadOnly(this, "address", computeAddress(this.publicKey));
        defineReadOnly(this, "chainCode", chainCode);
        defineReadOnly(this, "index", index);
        defineReadOnly(this, "depth", depth);
        defineReadOnly(this, "mnemonic", mnemonic);
        defineReadOnly(this, "path", path);
    }
    get extendedKey() {