import { SwcHTMLPictureElementBase } from '../elements/base/SwcHTMLPictureElementBase';
export declare class SwcIfPicture extends SwcHTMLPictureElementBase {
    private _placeholder;
    private _isShowing;
    private _isInitialized;
    _swcValue: any;
    onValueChange(): void;
    set swcValue(val: any);
    get swcValue(): any;
    connectedCallback(): void;
    private evaluate;
}
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