import * as React from 'react';
export type BreadcrumbsOverflowItem = {
    href?: string | undefined;
    label: React.ReactNode;
};
export type BreadcrumbsOverflowProps = {
    /** Pre-computed "Show N more" label. */
    label?: string | undefined;
    /** Collapsed middle items — serializable {href,label} pairs from the
        server Root (SURF-056); React elements also accepted for compat. */
    items?: Array<BreadcrumbsOverflowItem | React.ReactNode> | undefined;
    /** Initial menu state (uncontrolled). */
    defaultOpen?: boolean | undefined;
};
export declare function BreadcrumbsOverflow({ label, items, defaultOpen }: BreadcrumbsOverflowProps): React.JSX.Element;
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