import { Loader } from 'three/webgpu';
import type { Viewer } from 'u-space';
import { SemanticGroup } from './objects/SemanticGroup';
export declare class SemanticLoader extends Loader {
    #private;
    viewer: Viewer;
    key: string;
    cachedIds: Set<string>;
    constructor(viewer: Viewer);
    setKey(key: string): this;
    loadAsync(): Promise<SemanticGroup>;
    clearCache(): void;
    dispose(): void;
}