/** Document text extraction for catalog chunks (Rust-backed). */
import type { JsonRecord } from "./types.js";
export declare function extractJsonCatalogDocument(item: JsonRecord): string | null;
export declare function extractMdCatalogDocument(item: JsonRecord): string | null;
export declare function extractDocumentText(itemContent: JsonRecord): string | null;
export declare function extractLevelInfo(data: JsonRecord): string[];
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