import { ModifyMode, Feature, LineString, Point } from '@deck.gl-community/editable-layers';
import { Viewport } from '@deck.gl/core';
/**
 * Show helper only when the point is close enough to the line.
 */
export declare class ModifyModeExtended extends ModifyMode {
    getNearestPoint(line: Feature<LineString>, inPoint: Feature<Point>, viewport: Viewport | null | undefined): import("@deck.gl-community/editable-layers/dist/edit-modes/utils").NearestPointType | undefined;
    handleClick(event: any, props: any): void;
}