/// <reference types="node" />
import { TileJSON } from './tilejson';
export interface TileHeaders {
    'Content-Type'?: string;
    'Content-Encoding'?: string;
}
export declare function getTileHeaders(data: Buffer): TileHeaders;
export declare function tileToQuadKey({ x, y, zoom, }: {
    x: number;
    y: number;
    zoom: number;
}): string;
/**
 * Get the upstream tile URL for a particular tile
 * The provided tile coordinates should be based on the XYZ scheme,
 * which will then be converted to TMS if necessary based on the `upstreamScheme` that is provided
 */
export declare function getInterpolatedUpstreamTileUrl({ tiles: templateUrls, scheme: upstreamScheme, zoom, x, y, }: {
    tiles: TileJSON['tiles'];
    scheme: TileJSON['scheme'];
    zoom: number;
    x: number;
    y: number;
}): string | undefined;