import { CapabilityEmitter, StateEmitter } from "@vestibule-link/bridge-assistant-alexa";
import { MythAlexaEventFrontend, RegisteringDirective } from "./Frontend";
export default class FrontendPlaybackState implements StateEmitter, CapabilityEmitter, RegisteringDirective {
    readonly fe: MythAlexaEventFrontend;
    constructor(fe: MythAlexaEventFrontend);
    register(): Promise<void>;
    refreshState(deltaId: symbol): void;
    private updatePlaybackState;
    refreshCapability(deltaId: symbol): void;
    private playbackState;
    private updateState;
    private updatePlayingState;
    private updatePausedState;
    private updateStoppedState;
}