export declare function isEnterChar(character: string): boolean;
export declare function isChildProcess(): boolean;
export declare function isProcessRunning(pid: number): boolean;
/**
 * Blocking sleep to block a process
 */
export declare function blockingSleep(time?: number): void;
/**
 * Process killing function that doesn't fail
 * And include debugging statements
 * @return true if kill successfully. false otherwise
 */
export declare function killProcess(pid: number, signal?: string | number | undefined): boolean;
export declare function runMacroTask<T>(callback: () => Promise<T> | T): Promise<T>;
export declare function descSortFn(a: number, b: number): number;
export declare function ascSortFn(a: number, b: number): number;
export declare function stringify<T>(el: T): string;
export declare function isJestTest(): boolean;