import type { LitElement } from "lit";
import type { Constructor } from "./types.js";
export declare const devicesContext: {
    __context__: MediaDeviceInfo[] | undefined;
};
export declare const selectedDeviceContext: {
    __context__: MediaDeviceInfo | undefined;
};
export declare class DevicesContextInterface {
    _devices?: MediaDeviceInfo[];
    devices?: MediaDeviceInfo[];
    selectedDevice?: MediaDeviceInfo;
}
export declare function DevicesContextMixin<T extends Constructor<LitElement>>(superclass: T): Constructor<DevicesContextInterface> & T;