/**
 * Props for {@link ArtifactOverlay}.
 *
 * @category Components
 */
export type ArtifactOverlayProps = {
    /** Additional CSS class name(s) applied to the overlay container. */
    className?: string;
};
/**
 * Shared overlay wrapper for the artifact portal target.
 * Used by CopilotShell, BottomTray, and Shell (mobile) layouts.
 * Renders an absolute-positioned overlay with slide-in/slide-out animations.
 *
 * @category Components
 */
export declare const ArtifactOverlay: import("react").ForwardRefExoticComponent<ArtifactOverlayProps & import("react").RefAttributes<HTMLDivElement>>;
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