import { Autumn } from 'autumn-js';

const autumn = new Autumn();

const { data, error } = await autumn.balances.create({ 
  customer_id: 'cus_123', 
  feature_id: 'api_tokens', 
  granted_balance: 100, 
  reset: { interval: 'month' } 
});

{
  "success": true
}