import ErrorStackParser from 'error-stack-parser';
type NonUndefined<T> = T extends undefined ? never : T;
declare class Utility {
    static null(): void;
    static hideKeys<T extends {
        [key: string]: unknown;
    }>(obj: T, keys: (keyof T)[]): Partial<T>;
    static isMeaningful<T>(object: T): object is NonUndefined<T>;
    static isUndefined(object: any): object is undefined;
    static mapToJSON<T = unknown>(map: Map<string, T>): {
        [k: string]: T;
    };
    static parseInt(value: string): number;
    static randomInt(begin: number, end: number): number;
    static randomOne<T>(array: T[]): T;
    static randomOneByWeight<T>(array: T[], weighter: (ele: T) => number): T | null;
    static formatLogTimeString(): string;
    static deepCopy<T extends object>(obj: T): T;
}
declare class UnixTime {
    static fromNodeTime(ms: number): number;
    static fromDate(date: Date): number;
    static now(): number;
    static day(days: number): number;
    static hour(hours: number): number;
    static minute(minutes: number): number;
    static second(seconds: number): number;
}
declare class NodeTime {
    static fromUnixTime(second: number): number;
    static fromDate(date: Date): number;
    static now(): number;
    static day(days: number): number;
    static hour(hours: number): number;
    static minute(minutes: number): number;
    static second(seconds: number): number;
}
export declare class NanoTime {
    private static readonly originEpochNanos;
    private static readonly originHrTimeNanos;
    static now(): bigint;
}
declare class ArrayMap<K, T> extends Map<K, T[]> {
    constructor();
    append(k: K, value: T): void;
    sureGet(k: K): T[];
    remove(k: K, value: T): void;
}
declare class StackUtility {
    static getStack(): string[];
    static getStackPosition(depth: number): string;
    static getStackFile(depth: number): string;
    static findNearestStack(out: string): ErrorStackParser.StackFrame;
    static getInstantiationStack(targetConstructor: Function): ErrorStackParser.StackFrame;
    static formatFileName(filePath: string): string;
    private static normalizePath;
}
export { ArrayMap, NodeTime, StackUtility, UnixTime, Utility };
//# sourceMappingURL=Utility.d.ts.map