import type { Chunk, ChunkOptions } from '../types/index.js';
declare const DEFAULT_OPTIONS: ChunkOptions;
/**
 * Chunk a document into overlapping segments preserving semantic structure.
 *
 * Strategy:
 * 1. Split by headings if respectBoundaries is true
 * 2. For each section, split at natural boundaries (paragraph > sentence > word)
 * 3. Add overlap from previous chunk's tail
 * 4. Tag each chunk with section name and position
 */
export declare function chunkDocument(text: string, docId: string, options?: Partial<ChunkOptions>): Chunk[];
export { DEFAULT_OPTIONS as defaultChunkOptions };
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