import { ErrorUnion, TestStringUnion } from '../outputs';
/**
 * Returns the received string; for testing only. This is an offline method. Can be
 * called before authorization
 * @param {Object} params
 * @param {string} [params.x] - String to return
 * @param {Object} state
 * @returns {TestStringUnion | ErrorUnion}
 */
export declare type TestCallStringMethod = <ResponseT = TestStringUnion>(params: TestCallStringParams, state?: Record<string, any>) => Promise<ResponseT | ErrorUnion>;
export interface TestCallStringParams {
    /** String to return */
    x?: string;
}