Registering voice commands

{
  "voice": {
    "intents": ["crypto.price"]
  }
}

voice.registerIntent(
  "crypto.price",
  {
    slots: {
      symbol: { type: "string", required: true },
    },
    examples: [
      "Hey Piper, what's Bitcoin at?",
      "Hey Piper, Ethereum price please",
    ],
  },
  async ({ symbol }) => {
    const price = await fetchPrice(symbol);
    return { speak: `${symbol} is about ${price} dollars.` };
  },
);