/// <reference types="node" />
import { EventEmitter } from "events";
import { Document, Patch } from "./types";
export declare class SortedPatchList extends EventEmitter {
    private from_str;
    private patches;
    private times;
    private versions_cache;
    private cache;
    private all_snapshot_times;
    constructor(from_str: any);
    close(): void;
    next_available_time(time: Date | number, m?: number, n?: number): Date;
    add(patches: Patch[]): void;
    private newest_snapshot_time;
    value(time?: Date, force?: boolean, without_times?: Date[]): Document;
    value_no_cache(time?: Date, snapshots?: boolean): Document;
    validate_snapshots(): void;
    user_id(time: any): number;
    time_sent(time: any): Date | undefined;
    patch(time: any): Patch;
    versions(): Date[];
    show_history({ milliseconds, trunc, log, }?: {
        milliseconds?: boolean;
        trunc?: number;
        log?: Function;
    }): void;
    time_of_unmade_periodic_snapshot(interval: number, max_size: number): Date | undefined;
    snapshot_times(): Date[];
    newest_patch_time(): Date | undefined;
    count(): number;
    export(): Patch[];
}