code: '''Endpoints  POST /v1/topups   GET /v1/topups/:id  POST /v1/topups/:id   GET /v1/topups  POST /v1/topups/:id/cancel
  '''
nl: Top-upsTo top up your Stripe balance, you create a top-up object. You can retrieve
  individual top-ups, as well as list all top-ups. Top-ups are identified by a
  unique, random ID.