Discord.js question about interaction. is not a function. Why?

I have a code:

client.ws.on('INTERACTION_CREATE', async (interaction) => {
    console.log('interaction.isCommand() ' , interaction.isCommand());
}

But I am getting error on interaction:

TypeError: interaction.isCommand is not a function

why is it happening? I still cant understand that issue.
“discord.js”: “^14.9.0”,

I want to make interaction.reply()