attachToSelf property
If present, the SetupIntent’s payment method will be attached to the in-context Stripe Account. It can only be used for this Stripe Account’s own money movement flows like InboundTransfer and OutboundTransfers. It cannot be set to true when setting up a PaymentMethod for a Customer, and defaults to false when attaching a PaymentMethod to a Customer.
Implementation
@JsonKey(name: "attach_to_self")
String? get attachToSelf => throw _privateConstructorUsedError;