税金を含む価格設定

const product = await client.products.create({
  name: 'Pro Plan',
  description: 'All features included',
  tax_category: 'saas',
  price: {
    type: 'one_time_price',
    currency: 'USD',
    price: 10000,
    discount_bps: 0,
    purchasing_power_parity: false,
    tax_inclusive: true
  }
});

// `price` is a discriminated union, so send the complete price object,
// not just the field you want to change.
await client.products.update(product.product_id, {
  price: {
    type: 'one_time_price',
    currency: 'USD',
    price: 10000,
    discount_bps: 0,
    purchasing_power_parity: false,
    tax_inclusive: true
  }
});