export declare const ISOSURFACE_MEASURE_PREFIX = "isosurface:";
export type IsosurfaceProfileStage = `prepare_geometry` | `marching_cubes` | `build_geometry` | `sample_scalars` | `scalar_range` | `apply_colormap` | `rebuild_total` | `recolor_total`;
export type IsosurfaceProfileMeta = Record<string, boolean | number | string>;
export declare const set_isosurface_profiling: (on: boolean) => void;
export declare function record_stage(stage: IsosurfaceProfileStage, duration_ms: number, meta?: IsosurfaceProfileMeta): void;
export declare function time_stage<Result>(stage: IsosurfaceProfileStage, operation: () => Result, meta?: IsosurfaceProfileMeta | ((result: Result) => IsosurfaceProfileMeta)): Result;