import type { CoreCanvas, PlatformProvider } from "./platform.js";
/**
 * Node.js implementation of PlatformProvider.
 * Uses onnxruntime-node, ppu-ocv, and filesystem for resource management.
 */
export declare class NodePlatformProvider implements PlatformProvider {
    readonly ort: PlatformProvider["ort"];
    createCanvas(width: number, height: number): CoreCanvas;
    prepareCanvas(image: ArrayBuffer): Promise<CoreCanvas>;
    loadResource(source: string | ArrayBuffer | undefined, defaultUrl: string): Promise<ArrayBuffer>;
    private _runtimeInitialized;
    initRuntime(): Promise<void>;
    /**
     * Fetches a resource from a URL and caches it locally
     * @param url - URL to fetch the resource from
     * @returns ArrayBuffer containing the resource data
     */
    private fetchAndCache;
}
/** Singleton default Node.js platform provider */
export declare const defaultNodePlatform: NodePlatformProvider;