/// <reference types="react" />
import type { Effect } from 'react-lazy-load-image-component';
import { lazyImageEffectAssets } from './constants';
/** Perceived wrapper for `className` / `sx`; library may add an inner span when `effect` is set. */
export declare const LazyImageWrapperStyled: import("@emotion/styled").StyledComponent<import("@mui/system").BoxOwnProps<import("@mui/material/styles").Theme> & Omit<Omit<import("react").DetailedHTMLProps<import("react").HTMLAttributes<HTMLDivElement>, HTMLDivElement>, "ref"> & {
    ref?: ((instance: HTMLDivElement | null) => void) | import("react").RefObject<HTMLDivElement> | null | undefined;
}, keyof import("@mui/system").BoxOwnProps<import("@mui/material/styles").Theme>> & import("@mui/system").MUIStyledCommonProps<import("@mui/material/styles").Theme>, {}, {}>;
export declare function isLazyImageEffect(value: Effect | undefined): value is keyof typeof lazyImageEffectAssets;