export declare class PRNG {
    #private;
    constructor(seed?: bigint);
    getUint64(): bigint;
    getUint32(): number;
    /** get a float evenly distributed in the range [0, 1) */
    getFloat(): number;
}
export declare class SplitMix64 {
    #private;
    static modulus: bigint;
    constructor(state?: bigint);
    next(): bigint;
}