# Billing ## Fields | Field | Type | Required | Description | | ------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------ | | `InternalPaymentMethod` | [operations.InternalPaymentMethod](../../models/operations/internalpaymentmethod.md) | :heavy_check_mark: | N/A | | `PaymentMethodID` | *int64* | :heavy_check_mark: | N/A |