export declare const identity: <T>(x: T) => T;
export declare const noop: () => void;
export declare const extractLast: (str: string, symb: string) => string[];
export declare const shuffleArray: <T extends unknown>(arr: T[]) => T[];
export declare const findWithIndex: <T>(arr: T[], cb: (s: T, i: number) => boolean) => [undefined, number] | [T, number];