/// <reference types="@rbxts/compiler-types" />
export declare class LFUCache<K, V extends defined> {
    readonly capacity: number;
    constructor(capacity: number);
    static readonly instanceof: <K_1, V_1 extends defined>(value: unknown) => value is LFUCache<K_1, V_1>;
    get(key: K): V | undefined;
    set(key: K, value: V): void;
    private readonly cache;
    private readonly frequencyHash;
    private minimumFrequency;
}