import * as React from 'react';
import type { PortalLayerRoot } from '../contracts/preferences.js';
export interface PortalProps {
    /** Content rendered inside the component. */
    children?: React.ReactNode;
    /** Explicit container; when omitted the provider's `layer` root is used. */
    container?: HTMLElement | null;
    /** Which provider layer-root to use when `container` is omitted. */
    layer?: PortalLayerRoot;
}
export declare function Portal({ children, container, layer }: PortalProps): React.ReactPortal | null;
export declare namespace Portal {
    var displayName: string;
}
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