How to use the @liskhq/lisk-cryptography.intToBuffer function in @liskhq/lisk-cryptography

const getBytes = block => {
	const blockVersionBuffer = intToBuffer(
		block.version,
		SIZE_INT32,
		LITTLE_ENDIAN,
	);

	const timestampBuffer = intToBuffer(
		block.timestamp,
		SIZE_INT32,
		LITTLE_ENDIAN,
	);

	const previousBlockBuffer = block.previousBlockId
		? intToBuffer(block.previousBlockId, SIZE_INT64, BIG_ENDIAN)
		: Buffer.alloc(SIZE_INT64);

	const numTransactionsBuffer = intToBuffer(
		block.numberOfTransactions,
		SIZE_INT32,
		LITTLE_ENDIAN,
	);

	const totalAmountBuffer = intToBuffer(
		block.totalAmount.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

	const totalFeeBuffer = intToBuffer(
		block.totalFee.toString(),

const getBytes = block => {
	const blockVersionBuffer = intToBuffer(
		block.version,
		SIZE_INT32,
		LITTLE_ENDIAN,
	);

	const timestampBuffer = intToBuffer(
		block.timestamp,
		SIZE_INT32,
		LITTLE_ENDIAN,
	);

	const previousBlockBuffer = block.previousBlockId
		? intToBuffer(block.previousBlockId, SIZE_INT64, BIG_ENDIAN)
		: Buffer.alloc(SIZE_INT64);

	const numTransactionsBuffer = intToBuffer(

LITTLE_ENDIAN,
	);

	const totalAmountBuffer = intToBuffer(
		block.totalAmount.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

	const totalFeeBuffer = intToBuffer(
		block.totalFee.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

	const rewardBuffer = intToBuffer(
		block.reward.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

	const payloadLengthBuffer = intToBuffer(
		block.payloadLength,
		SIZE_INT32,
		LITTLE_ENDIAN,
	);

	const payloadHashBuffer = hexToBuffer(block.payloadHash);

	const generatorPublicKeyBuffer = hexToBuffer(block.generatorPublicKey);

	const blockSignatureBuffer = block.blockSignature

block.timestamp,
		SIZE_INT32,
		LITTLE_ENDIAN,
	);

	const previousBlockBuffer = block.previousBlockId
		? intToBuffer(block.previousBlockId, SIZE_INT64, BIG_ENDIAN)
		: Buffer.alloc(SIZE_INT64);

	const numTransactionsBuffer = intToBuffer(
		block.numberOfTransactions,
		SIZE_INT32,
		LITTLE_ENDIAN,
	);

	const totalAmountBuffer = intToBuffer(
		block.totalAmount.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

	const totalFeeBuffer = intToBuffer(
		block.totalFee.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

	const rewardBuffer = intToBuffer(
		block.reward.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

LITTLE_ENDIAN,
	);

	const totalFeeBuffer = intToBuffer(
		block.totalFee.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

	const rewardBuffer = intToBuffer(
		block.reward.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

	const payloadLengthBuffer = intToBuffer(
		block.payloadLength,
		SIZE_INT32,
		LITTLE_ENDIAN,
	);

	const payloadHashBuffer = hexToBuffer(block.payloadHash);

	const generatorPublicKeyBuffer = hexToBuffer(block.generatorPublicKey);

	const blockSignatureBuffer = block.blockSignature
		? hexToBuffer(block.blockSignature)
		: Buffer.alloc(0);

	return Buffer.concat([
		blockVersionBuffer,
		timestampBuffer,

LITTLE_ENDIAN,
	);

	const numTransactionsBuffer = intToBuffer(
		block.numberOfTransactions,
		SIZE_INT32,
		LITTLE_ENDIAN,
	);

	const totalAmountBuffer = intToBuffer(
		block.totalAmount.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

	const totalFeeBuffer = intToBuffer(
		block.totalFee.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

	const rewardBuffer = intToBuffer(
		block.reward.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

	const payloadLengthBuffer = intToBuffer(
		block.payloadLength,
		SIZE_INT32,
		LITTLE_ENDIAN,
	);

const heightBuffer = intToBuffer(block.height, SIZE_INT32, LITTLE_ENDIAN);

	const maxHeightPreviouslyForgedBuffer = intToBuffer(
		block.maxHeightPreviouslyForged,
		SIZE_INT32,
		LITTLE_ENDIAN,
	);

	const maxHeightPrevotedBuffer = intToBuffer(
		block.maxHeightPrevoted,
		SIZE_INT32,
		LITTLE_ENDIAN,
	);

	const numTransactionsBuffer = intToBuffer(
		block.numberOfTransactions,
		SIZE_INT32,
		LITTLE_ENDIAN,
	);

	const totalAmountBuffer = intToBuffer(
		block.totalAmount.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

	const totalFeeBuffer = intToBuffer(
		block.totalFee.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

LITTLE_ENDIAN,
	);

	const totalAmountBuffer = intToBuffer(
		block.totalAmount.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

	const totalFeeBuffer = intToBuffer(
		block.totalFee.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

	const rewardBuffer = intToBuffer(
		block.reward.toString(),
		SIZE_INT64,
		LITTLE_ENDIAN,
	);

	const payloadLengthBuffer = intToBuffer(
		block.payloadLength,
		SIZE_INT32,
		LITTLE_ENDIAN,
	);

	const payloadHashBuffer = hexToBuffer(block.payloadHash);

	const generatorPublicKeyBuffer = hexToBuffer(block.generatorPublicKey);

	const blockSignatureBuffer = block.blockSignature

const assetToBytes = tx => {
	const { mandatoryKeys, optionalKeys, numberOfSignatures } = tx.asset;
	const mandatoryKeysBuffer = Buffer.from(mandatoryKeys.join(''), 'utf8');
	const optionalKeysBuffer = Buffer.from(optionalKeys.join(''), 'utf8');
	const assetBuffer = Buffer.concat([
		intToBuffer(mandatoryKeys.length, 1),
		mandatoryKeysBuffer,
		intToBuffer(optionalKeys.length, 1),
		optionalKeysBuffer,
		intToBuffer(numberOfSignatures, 1),
	]);

	return assetBuffer;
};