const credits = await client.credits.get();

console.log(credits.total);           // 847
console.log(credits.monthlyRemaining); // 800
console.log(credits.topupRemaining);   // 47
console.log(credits.tier);            // "pro"
console.log(credits.status);          // "active"

interface CreditsInfo {
  monthlyRemaining: number;  // Credits left in current billing cycle
  topupRemaining: number;    // Purchased top-up credits (never expire)
  total: number;             // monthlyRemaining + topupRemaining
  creditsLimit: number;      // Monthly credit allowance for your tier
  tier: string | null;       // starter | pro | max | ultra
  status: string | null;     // active | canceled | past_due
}

const credits = await client.credits.get();

if (credits.total < 4) {
  console.log('Not enough credits for 4K generation');
  return;
}

const result = await client.generate.create({
  imageUrl: '...',
  type: 'product',
  style: 'studio',
  resolution: '4K', // costs 4 credits
});