How to use the @ethersproject/bytes.stripZeros function in @ethersproject/bytes

transactionFields.forEach(function (fieldInfo) {
        let value = transaction[fieldInfo.name] || ([]);
        const options = {};
        if (fieldInfo.numeric) {
            options.hexPad = "left";
        }
        value = arrayify(hexlify(value, options));
        // Fixed-width field
        if (fieldInfo.length && value.length !== fieldInfo.length && value.length > 0) {
            logger.throwArgumentError("invalid length for " + fieldInfo.name, ("transaction:" + fieldInfo.name), value);
        }
        // Variable-width (with a maximum)
        if (fieldInfo.maxLength) {
            value = stripZeros(value);
            if (value.length > fieldInfo.maxLength) {
                logger.throwArgumentError("invalid length for " + fieldInfo.name, ("transaction:" + fieldInfo.name), value);
            }
        }
        raw.push(hexlify(value));
    });
    if (transaction.chainId != null && transaction.chainId !== 0) {

transactionFields.forEach(function (fieldInfo) {
        var value = transaction[fieldInfo.name] || ([]);
        var options = {};
        if (fieldInfo.numeric) {
            options.hexPad = "left";
        }
        value = bytes_1.arrayify(bytes_1.hexlify(value, options));
        // Fixed-width field
        if (fieldInfo.length && value.length !== fieldInfo.length && value.length > 0) {
            logger.throwArgumentError("invalid length for " + fieldInfo.name, ("transaction:" + fieldInfo.name), value);
        }
        // Variable-width (with a maximum)
        if (fieldInfo.maxLength) {
            value = bytes_1.stripZeros(value);
            if (value.length > fieldInfo.maxLength) {
                logger.throwArgumentError("invalid length for " + fieldInfo.name, ("transaction:" + fieldInfo.name), value);
            }
        }
        raw.push(bytes_1.hexlify(value));
    });
    if (transaction.chainId != null && transaction.chainId !== 0) {

return unsignedTransaction;
    }
    // The splitSignature will ensure the transaction has a recoveryParam in the
    // case that the signTransaction function only adds a v.
    var sig = bytes_1.splitSignature(signature);
    // We pushed a chainId and null r, s on for hashing only; remove those
    var v = 27 + sig.recoveryParam;
    if (raw.length === 9) {
        raw.pop();
        raw.pop();
        raw.pop();
        v += transaction.chainId * 2 + 8;
    }
    raw.push(bytes_1.hexlify(v));
    raw.push(bytes_1.stripZeros(bytes_1.arrayify(sig.r)));
    raw.push(bytes_1.stripZeros(bytes_1.arrayify(sig.s)));
    return RLP.encode(raw);
}
exports.serialize = serialize;

return unsignedTransaction;
    }
    // The splitSignature will ensure the transaction has a recoveryParam in the
    // case that the signTransaction function only adds a v.
    const sig = splitSignature(signature);
    // We pushed a chainId and null r, s on for hashing only; remove those
    let v = 27 + sig.recoveryParam;
    if (raw.length === 9) {
        raw.pop();
        raw.pop();
        raw.pop();
        v += transaction.chainId * 2 + 8;
    }
    raw.push(hexlify(v));
    raw.push(stripZeros(arrayify(sig.r)));
    raw.push(stripZeros(arrayify(sig.s)));
    return RLP.encode(raw);
}
export function parse(rawTransaction) {

export function getContractAddress(transaction: { from: string, nonce: BigNumberish }) {
    let from: string = null;
    try {
        from = getAddress(transaction.from);
    } catch (error) {
        logger.throwArgumentError("missing from address", "transaction", transaction);
    }

    const nonce = stripZeros(arrayify(BigNumber.from(transaction.nonce).toHexString()));

    return getAddress(hexDataSlice(keccak256(encode([ from, nonce ])), 12));
}

export function getContractAddress(transaction) {
    let from = null;
    try {
        from = getAddress(transaction.from);
    }
    catch (error) {
        logger.throwArgumentError("missing from address", "transaction", transaction);
    }
    const nonce = stripZeros(arrayify(BigNumber.from(transaction.nonce).toHexString()));
    return getAddress(hexDataSlice(keccak256(encode([from, nonce])), 12));
}

function getContractAddress(transaction) {
    var from = null;
    try {
        from = getAddress(transaction.from);
    }
    catch (error) {
        logger.throwArgumentError("missing from address", "transaction", transaction);
    }
    var nonce = bytes_1.stripZeros(bytes_1.arrayify(bignumber_1.BigNumber.from(transaction.nonce).toHexString()));
    return getAddress(bytes_1.hexDataSlice(keccak256_1.keccak256(rlp_1.encode([from, nonce])), 12));
}
exports.getContractAddress = getContractAddress;