import { type uint32_t, type uint64_t } from '../prelude.js';
/** PRNG (floating point) interface */
export interface IPrng {
    random(): number;
}
/** PRNG (32-bit integer) interface */
export interface IPrng32 {
    randomUint32(): uint32_t;
}
/** PRNG (64-bit integer) interface */
export interface IPrng64 {
    randomUint64(): uint64_t;
}
/** Return a pseudorandom uint32 in the range [0, n). */
export declare const randomUint32LessThan: (prng: IPrng32, n: uint32_t) => uint32_t;
/** Fisher–Yates shuffle, aka Knuth shuffle. */
export declare const shuffle: <T>(prng: IPrng32, array: T[]) => T[];