/** @packageDocumentation
 * @module Tile
 */
import { ByteStream } from "@itwin/core-bentley";
import { TileHeader } from "./TileIO";
/** Header preceding tile content in [b3dm](https://github.com/AnalyticalGraphicsInc/3d-tiles/tree/master/specification/TileFormats/Batched3DModel) format.
 * @internal
 */
export declare class B3dmHeader extends TileHeader {
    readonly length: number;
    readonly featureTableJsonLength: number;
    readonly featureTableBinaryLength: number;
    readonly batchTableJsonLength: number;
    readonly batchTableBinaryLength: number;
    readonly featureTableJson: any;
    readonly batchTableJson: any;
    get isValid(): boolean;
    constructor(stream: ByteStream);
}
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