import { EventEmitter } from "events";
import type StrictEventEmitter from "strict-event-emitter-types";
import { Playback } from "./playback";
export type Marker<M extends string = string> = [M, number, number];
interface ScriptEvents {
    markerupdate: number;
}
declare const Script_base: new () => StrictEventEmitter<EventEmitter, ScriptEvents>;
export declare class Script<M extends string = string> extends Script_base {
    /** The underlying {@link Playback} instance. */
    playback: Playback;
    /** The array of markers, in the form [name, startTime, endTime]. */
    markers: Marker<M>[];
    /** Index of the active marker. */
    markerIndex: number;
    constructor(markers: readonly (readonly [M, number | string, number | string] | readonly [M, number | string])[]);
    /** @deprecated */
    get hub(): this;
    /** Name of the active marker. */
    get markerName(): string;
    /** Seek playback to the previous marker. */
    back(): void;
    /** Advance playback to the next marker. */
    forward(): void;
    /**
     * Returns the first marker with the given name.
     * @throws {Error} If no marker named `name` exists.
     */
    markerByName(name: string): Marker;
    /**
     * Returns the first index of a marker named `name`.
     * @throws {Error} If no marker named `name` exists.
     */
    markerNumberOf(name: string): number;
    /** If `start` is a string, returns the starting time of the marker with that name. Otherwise, returns `start`. */
    parseStart(start: number | string): number;
    /** If `end` is a string, returns the ending time of the marker with that name. Otherwise, returns `end`. */
    parseEnd(end: number | string): number;
    /** Update marker */
    __updateMarker(t: number): void;
}
export {};