import { IRedisClient, INodeRedisClient } from '@da440dil/js-redis-script';
import { Result } from './Result';
/** One of algorithms: 1 stands for the fixed window algorithm, 2 stands for the sliding window algorithm. */
export declare const Algorithm: {
    /** Fixed window. */
    readonly Fixed: 1;
    /** Sliding window. */
    readonly Sliding: 2;
};
export declare type Algorithm = typeof Algorithm[keyof typeof Algorithm];
/** Implements distributed counter. */
export declare class Counter {
    private size;
    private limit;
    private script;
    constructor(client: IRedisClient | INodeRedisClient, size: number, limit: number, algorithm: Algorithm);
    /**
     * Increments key value by specified value.
     * @param key The key to be incremented.
     * @param value The value the key value to be incremented by.
     */
    count(key: string, value: number): Promise<Result>;
}