Optionalbilling_OptionalexpandSpecifies which fields in the response should be expanded.
Optionalproration_Determines how to handle prorations resulting from the billing_cycle_anchor being unchanged. When the billing_cycle_anchor is set to now (default value), no prorations are generated. If no value is passed, the default is create_prorations.
Optionalproration_If set, prorations will be calculated as though the subscription was resumed at the given time. This can be used to apply exactly the same prorations that were previewed with the create preview endpoint.
The billing cycle anchor that applies when the subscription is resumed. Either
noworunchanged. The default isnow. For more information, see the billing cycle documentation.