code: '''Endpoints  POST /v1/invoiceitems   GET /v1/invoiceitems/:id  POST /v1/invoiceitems/:idDELETE /v1/invoiceitems/:id   GET /v1/invoiceitems
  '''
nl: Invoice ItemsSometimes you want to add a charge or credit to a customer, but actually
  charge or credit the customer's card only at the end of a regular billing
  cycle. This is useful for combining several charges (to minimize
  per-transaction fees), or for having Stripe tabulate your usage-based billing
  totals.