import { Ddan } from '../../typings';
declare function to<T = any, U extends object = any>(promise: Promise<T>, errorExt?: object, fn?: Ddan.noop): Promise<[null, T] | [U, undefined]>;
declare function jsonParse<T = unknown>(text: string, defaultValue?: T | null): T | null;
declare const _default: {
    to: typeof to;
    go: <T = any>(task?: Ddan.PFunction<T> | undefined, fn?: Ddan.noop | undefined) => Promise<[any, undefined] | [null, T]>;
    delay: (ms?: number) => Promise<unknown>;
    safeRun: <T_1 = any>(func: any, fn?: Ddan.noop | undefined) => Promise<[null, T_1] | [any, undefined]>;
    toError: (value: any) => any;
    timeout: <T_2 = any>(task?: Ddan.PFunction<T_2> | undefined, ms?: number, desc?: string) => Promise<[any, undefined] | [null, T_2]>;
    getValueIf: <T_3 = any, F = any>(condition: boolean | (() => boolean), trueValue: T_3 | (() => T_3), falseValue?: F | (() => F) | undefined) => T_3 | F | undefined;
    resolveValue: <T_4 = any>(value: T_4 | (() => T_4)) => T_4;
    compareVersion: (ver1: string, ver2: string) => 0 | 1 | -1;
    toOpen: (content: string, defaultOpen?: boolean) => boolean;
    jsonParse: typeof jsonParse;
};
export default _default;