import { PowerController } from "@vestibule-link/alexa-video-skill-types";
import { CapabilityEmitter, DirectiveHandlers, StateEmitter, SupportedDirectives } from "@vestibule-link/bridge-assistant-alexa";
import { EndpointState, SubType } from "@vestibule-link/iot-types";
import { MythAlexaEventFrontend, RegisteringDirective } from "./Frontend";
declare type DirectiveType = PowerController.NamespaceType;
declare const DirectiveName: DirectiveType;
declare type Response = {
    payload: {};
    state?: {
        [DirectiveName]?: SubType<EndpointState, DirectiveType>;
    };
};
export default class FrontendPower implements SubType<DirectiveHandlers, DirectiveType>, StateEmitter, CapabilityEmitter, RegisteringDirective {
    readonly fe: MythAlexaEventFrontend;
    readonly supported: SupportedDirectives<DirectiveType>;
    constructor(fe: MythAlexaEventFrontend);
    register(): Promise<void>;
    refreshState(deltaId: symbol): void;
    refreshCapability(deltaId: symbol): void;
    TurnOn(payload: {}): Promise<Response>;
    TurnOff(payload: {}): Promise<Response>;
    private updateOnState;
    private updateOffState;
    private updateState;
    powerState(): PowerController.States;
}
export {};