class Acme::Client

def new_order(identifiers:, not_before: nil, not_after: nil)
  payload = {}
  payload['identifiers'] = prepare_order_identifiers(identifiers)
  payload['notBefore'] = not_before if not_before
  payload['notAfter'] = not_after if not_after
  response = post(endpoint_for(:new_order), payload: payload)
  arguments = attributes_from_order_response(response)
  Acme::Client::Resources::Order.new(self, **arguments)
end