/**
 * LAZ streaming source backed by `laz-perf` (Apache-2.0).
 *
 * Phase 2 v1: load the whole .laz file into memory, decompress through
 * `LASZip`, and emit chunks of decoded points. Memory-bounded callers
 * apply `streamPointCloud`'s downsampling cap before reaching here.
 *
 * The wasm module is loaded lazily on first `open()` so files that
 * never need LAZ don't pay the wasm-instantiation cost.
 */
import type { DecodedPointChunk } from '../types.js';
import type { DownsampleHint, PointSourceInfo, StreamingPointSource } from './types.js';
export declare class LazStreamingSource implements StreamingPointSource {
    private blob;
    private downsample;
    private label?;
    private mod;
    private laszip;
    private header;
    private fileBytes;
    private filePtr;
    private pointPtr;
    private pointBuffer;
    private cursor;
    private rgbScale;
    constructor(blob: Blob, options?: {
        label?: string;
        downsample?: DownsampleHint;
    });
    open(signal?: AbortSignal): Promise<PointSourceInfo>;
    next(maxPoints: number, signal?: AbortSignal): Promise<DecodedPointChunk | null>;
    close(): void;
    private toInfo;
}
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