How to use the @ethersproject/hash.isValidName function in @ethersproject/hash

exports.concat = bytes_1.concat;
exports.hexDataSlice = bytes_1.hexDataSlice;
exports.hexDataLength = bytes_1.hexDataLength;
exports.hexlify = bytes_1.hexlify;
exports.hexStripZeros = bytes_1.hexStripZeros;
exports.hexValue = bytes_1.hexValue;
exports.hexZeroPad = bytes_1.hexZeroPad;
exports.isHexString = bytes_1.isHexString;
exports.joinSignature = bytes_1.joinSignature;
exports.zeroPad = bytes_1.zeroPad;
exports.splitSignature = bytes_1.splitSignature;
exports.stripZeros = bytes_1.stripZeros;
var hash_1 = require("@ethersproject/hash");
exports.hashMessage = hash_1.hashMessage;
exports.id = hash_1.id;
exports.isValidName = hash_1.isValidName;
exports.namehash = hash_1.namehash;
var hdnode_1 = require("@ethersproject/hdnode");
exports.defaultPath = hdnode_1.defaultPath;
exports.entropyToMnemonic = hdnode_1.entropyToMnemonic;
exports.HDNode = hdnode_1.HDNode;
exports.isValidMnemonic = hdnode_1.isValidMnemonic;
exports.mnemonicToEntropy = hdnode_1.mnemonicToEntropy;
exports.mnemonicToSeed = hdnode_1.mnemonicToSeed;
var json_wallets_1 = require("@ethersproject/json-wallets");
exports.getJsonWalletAddress = json_wallets_1.getJsonWalletAddress;
var keccak256_1 = require("@ethersproject/keccak256");
exports.keccak256 = keccak256_1.keccak256;
var logger_1 = require("@ethersproject/logger");
exports.Logger = logger_1.Logger;
var sha2_1 = require("@ethersproject/sha2");
exports.sha256 = sha2_1.sha256;