import IFile from "../storage/IFile";
import { IEventHandler } from "ste-events";
import { IMaterialWrapper } from "./IMaterial";
export default class Material {
    private _file?;
    private _isLoaded;
    private _loadedWithComments;
    definition?: IMaterialWrapper;
    private _onLoaded;
    get isLoaded(): boolean;
    get file(): IFile | undefined;
    set file(newFile: IFile | undefined);
    get onLoaded(): import("ste-events").IEvent<Material, Material>;
    get version(): string | undefined;
    static ensureOnFile(file: IFile, loadHandler?: IEventHandler<Material, Material>): Promise<Material>;
    persist(): boolean;
    save(): Promise<void>;
    /**
     * Loads the definition from the file.
     * @param preserveComments If true, uses comment-preserving JSON parsing for edit/save cycles.
     *                         If false (default), uses efficient standard JSON parsing.
     *                         Can be called again with true to "upgrade" a read-only load to read/write.
     */
    load(preserveComments?: boolean): Promise<void>;
}