import { WriterContext, PropertyType } from '@gltf-transform/core';
declare interface IExtensibleProperty {
}
type DebugBreakPoint = boolean | "pointer:read";
export type Options = {
    debug?: boolean;
    breakpoint?: DebugBreakPoint;
    write?: boolean;
};
export interface IOpaqueExtension {
}
export interface IOpaqueProperty {
    /** used by progressive texture extension to pass an extension between documents */
    getExtensionDefinition(): object;
    /** register a reference so gltf-transform will not remove it in e.g. dedup
     * https://github.com/donmccurdy/glTF-Transform/issues/980#issuecomment-1585748202
     */
    setReference(name: string, value: any, attributes?: Record<string, any>): void;
}
export interface IExtensionWriter {
    /** used by progressive texture extension to pass an extension between documents */
    assignTo?(obj: object): any;
    write(context: WriterContext, prop: IExtensibleProperty): void;
}
export declare let currentGenerator: string;
export declare function createOpaqueExtension(name: string, types: PropertyType | PropertyType[], opts?: Options): IOpaqueExtension;
export {};