import { OwlAccessBetaAccountsUsersCheckExistenceInput, OwlAccessBetaAccountsUsersCheckExistenceOutput } from '../types';
/**
 * Check if a user exists.
 * @param req query parameters
 * @returns exists boolean
 */
export declare const checkUserAccountExistence: (parameters: OwlAccessBetaAccountsUsersCheckExistenceInput) => Promise<OwlAccessBetaAccountsUsersCheckExistenceOutput>;