import { NodeIO, Document, PlatformIO } from "@gltf-transform/core";
/**
 * Handle writing glTf, GLB and VRM files
 */
export declare function writeNodeIO(nodeio: NodeIO, filename: string, document: Document): Promise<string>;
export declare function ioTryReadWithMissingResources(io: PlatformIO, filepath: string, iteration?: number): Promise<Document>;
/**
 * Copy external resources (images/buffers with URIs) referenced by a Document
 * from the input directory to the output directory. No-op if input and output resolve to the same directory.
 */
export declare function copyExternalResources(document: Document, inputFile: string, outputFile: string): void;