import { SetExternalVideoVolumeCommandArguments } from './types';
export declare const volume: {
    /**
     * Sets the volume of the external video to a certain level. Needs to be a value between 0 and 1.
     *
     * @param setExternalVideoVolumeCommandArguments the volume to which the core will set in the
     * external video.
     * Refer to {@link SetExternalVideoVolumeCommandArguments} to understand the argument structure.
     */
    set: (setExternalVideoVolumeCommandArguments: SetExternalVideoVolumeCommandArguments) => void;
};