/**
 * @fileoverview SlidingWindowDecomposer (SPEC Section 6.1)
 *
 * Fixed-size windows with optional overlap.
 *
 * Per D-INV-*:
 * - D-INV-0: chunk.text === input.slice(span.start, span.end)
 * - D-INV-1: chunks.length >= 1
 * - D-INV-2: chunks[i].index === i
 * - D-INV-2b: chunks sorted by span.start
 * - D-INV-3: 0 <= span.start <= span.end <= input.length
 *
 * @module strategies/decompose/sliding-window
 */
import type { Chunk } from "../../core/types/chunk.js";
import type { DecomposeStrategy, DecomposeOptions } from "../../core/interfaces/decomposer.js";
/**
 * Fixed-size windows with optional overlap.
 *
 * Per SPEC Section 6.1:
 * - Chunks are fixed-size windows
 * - Overlap creates context preservation (OVL-*)
 * - Default is non-overlap (OVL-3)
 */
export declare class SlidingWindowDecomposer implements DecomposeStrategy {
    readonly name = "SlidingWindowDecomposer";
    private readonly defaultChunkSize;
    private readonly defaultOverlapSize;
    /**
     * Create a SlidingWindowDecomposer.
     *
     * @param chunkSize - Default chunk size in characters
     * @param overlapSize - Default overlap size in characters (default: 0)
     */
    constructor(chunkSize?: number, overlapSize?: number);
    /**
     * Decompose text into fixed-size chunks.
     */
    decompose(text: string, options?: DecomposeOptions): Promise<Chunk[]>;
}
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