import type { B2CInstance } from '@salesforce/b2c-tooling-sdk/instance';
/**
 * Returns `login` if provided, otherwise resolves the current authenticated
 * user's login via `GET /users/this`. Used by access-key commands so callers
 * can manage their own keys without restating the email.
 */
export declare function resolveLoginOrWhoami(instance: B2CInstance, login: string | undefined): Promise<string>;