export interface ExistingUser {
    /**Context ID. Clients and developers must not pass this explicitly. This value is generated by the server and can be passed back by the worker SDKs.*/
    contextId?: string;
    /**User field for traceability of requests. Synchronous SDK APIs use this field for you.*/
    requestId?: string;
    /**User key within the realm ('login' field, by default)*/
    key: string;
}