import * as Adaptive from "adaptivecards";
import { MultiThemeHostContainer } from "../multi-theme-host-container";
export declare enum ContainerSize {
    Small = "Small",
    Medium = "Medium",
    Large = "Large"
}
export declare class WidgetContainer extends MultiThemeHostContainer {
    private _containerSize;
    private _outerFrame;
    constructor(size: ContainerSize);
    static readonly widgetPadding: number;
    initialize(): void;
    renderTo(hostElement: HTMLElement): void;
    requiresOverflowStyling(): boolean;
    private applyWidgetOverflowStyling;
    private addCardElementsWrapper;
    adjustStyleForBackground(): void;
    get targetVersion(): Adaptive.Version;
    get isFixedHeight(): boolean;
    set containerSize(value: ContainerSize);
    get supportsMultipleSizes(): boolean;
    static get supportedContainerSizes(): string[];
}