import BaseElement from './BaseElement';
export default class BaseWidget extends BaseElement {
    label: string;
    shadow: ShadowRoot;
    styleEl: HTMLStyleElement | undefined;
    contents: HTMLElement | undefined;
    shouldRenderStyles: boolean | undefined;
    stylesAdded: boolean | undefined;
    styles: {
        [className: string]: string;
    }[] | undefined;
    constructor();
    focusPreviousPost(): void;
    focusNextPost(): void;
    handleKeydown(evt: KeyboardEvent): void;
    /**
     * Handle focus
     */
    handleFocus(evt: Event): void;
    /**
     * Handle focusout
     */
    handleFocusout(): void;
    /**
     * Handle shadow focusout
     */
    handleShadowFocusout(evt: Event): void;
    renderWidget(contents: HTMLElement, styles: Array<{
        [className: string]: string;
    }>): void;
}
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