what dose @param notation in javaScript : <pre><code>/**
 * Create mulit signature wallet function
 * @param account {String} account name
 * @returns {String} Return multisig wallet address
 */
const createMultiSigWallet = async(account) =&gt; {
    if (!account) throw new Error('Account name is required.');
    let keys = [];
    await keys.push(await creat`enter code here`eWallet());
    await keys.push(await createWallet());
    //keys.toString();`enter code here`
    //console.log(client.execute('addmultisigaddress', [2, keys, account]));
    return client.execute('addmultisigaddress', [2, keys, account]);
};
</code></pre>

<p>it is function of node.js what does mean @param in javascript </p>
