import * as reselect from 'reselect';
import { VideoBackgroundEffect } from '../adapter/CallAdapter';
/**
 * @private
 */
export declare const activeVideoBackgroundEffectSelector: ((state: import("../adapter/CallAdapter").CallAdapterUiState & import("../adapter/CallAdapter").CallAdapterClientState) => string | undefined) & reselect.OutputSelectorFields<(args_0: VideoBackgroundEffect | undefined) => string | undefined, {
    clearCache: () => void;
}> & {
    clearCache: () => void;
};
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