Error Handling

{
  "error": "Insufficient balance: has $0.50, needs $1.00",
  "code": "INSUFFICIENT_BALANCE",
  "details": {
    "currentBalance": 0.50,
    "requiredBalance": 1.00,
    "deficit": 0.50
  }
}

try {
  const result = await chat(prompt);
  console.log(result.text);
} catch (error) {
  if (error.response?.status === 402) {
    console.error('Please top up your wallet');
  } else {
    console.error('Error:', error.message);
  }
}