import type { ChatSource } from '../types/message.types';
/** How many retrieved sources to show when the answer cited none of them. */
export declare const FALLBACK_TOP_RETRIEVED = 3;
export interface CitedSources {
    /** Sources the answer referenced, in the order the answer first referenced
     *  them — NOT in `index` order. */
    cited: ChatSource[];
    /** Everything retrieved but not referenced, in the order supplied. */
    uncited: ChatSource[];
}
/**
 * Split an answer's sources into the ones it cited and the ones it did not.
 *
 * Reading order, not numeric order: the strip is a legend for the sentences
 * above it, so the chip for the citation the reader meets first comes first,
 * even when the model numbered it `[3]`. A number cited twice is placed once,
 * at its first mention.
 *
 * `content` is the flat answer text. A segmented message has to be flattened by
 * the caller — citation markers live in text segments, and this function
 * deliberately does not know what a segment is.
 */
export declare function splitCitedSources(sources: ChatSource[] | undefined, content: string): CitedSources;
//# sourceMappingURL=cited-sources.d.ts.map