import type { Ucb1State } from './types.js';
/** UCB1 bandit to select strategy IDs by historical uplift */
export declare class UCB1 {
    private t;
    private stats;
    constructor(ids: string[]);
    pick(): string;
    update(id: string, reward: number): void;
    serialize(): Ucb1State;
    static from(obj: Ucb1State): UCB1;
}