import { EventEmitter } from '../../1_socket/index.js';
import type { FetchParams } from '../messages.js';
import type { ValueType, OperatorType as Operator, ValueRule, pathFunction, PublishMessage } from '../types.js';
export declare class Fetcher extends EventEmitter {
    message: FetchParams;
    valueRules: Record<string, ValueRule>;
    constructor();
    addListener: <T extends ValueType>(eventName: "data", listener: (update: PublishMessage<T>) => void) => this;
    path: pathFunction;
    value: (operator: Operator, value: string | boolean | number, field?: string) => this;
    matches: (path: string, value: ValueType | undefined) => boolean;
    differential: () => this;
    ascending: () => this;
    descending: () => this;
    sortByValue: (key?: string) => this;
    sortByPath: () => this;
    range: (_from: number, _to: number) => this;
}
export default Fetcher;