export declare class DetailsRequestAuthenticationData { /** * Required to trigger the [authentication-only flow](https://docs.adyen.com/online-payments/3d-secure/authentication-only/). If set to **true**, you will only perform the 3D Secure 2 authentication, and will not proceed to the payment authorization.Default: **false**. */ "authenticationOnly"?: boolean; static readonly discriminator: string | undefined; static readonly mapping: { [index: string]: string; } | undefined; static readonly attributeTypeMap: Array<{ name: string; baseName: string; type: string; format: string; }>; static getAttributeTypeMap(): { name: string; baseName: string; type: string; format: string; }[]; constructor(); }