/**
 * Shared className generator for the chat-adjacent UI family:
 *  - **Source chips** (citation list below an assistant turn)
 *  - **Inline entity-card pills** (within prose, marker-rendered)
 *  - **Search-result rows** (dropdown beneath the search input)
 *
 * Centralising the token here means a single ODS change propagates to
 * every surface — chip / card / dropdown row read as the same family.
 *
 * The `tone` arg controls the resting text color:
 *  - `secondary` — citation chips and tertiary metadata. Muted resting.
 *  - `primary`   — chips that ARE the subject of the sentence. Matches
 *    body text color so the chip reads as content, not metadata.
 *
 * The `density` arg controls size / padding:
 *  - `'chip'`     — inline pill (`px-2 py-0.5 text-[11px]`). Default;
 *    used by the citation row and inline entity-card markers.
 *  - `'list-row'` — wider, taller row (`px-3 py-2 text-sm`). Used by
 *    the search-bar dropdown. Same ODS family — same border, hover
 *    transition, accent treatment — just larger touch target.
 *  - `'card-row'` — for the tracking strip beneath a card frame
 *    (`px-2 py-1 text-[11px]` no border). Same family, no frame.
 */
export interface ChipClassOptions {
    tone: 'primary' | 'secondary';
    /** Visual density. Defaults to `'chip'`. */
    density?: 'chip' | 'list-row' | 'card-row';
    /** Extra classes appended verbatim (e.g. `cursor-pointer`). */
    extra?: string;
}
export declare function chatChipClass({ tone, density, extra }: ChipClassOptions): string;
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