import type { OrdinalSceneNode, OrdinalLayout } from "../ordinalTypes";
import type { OrdinalSceneContext } from "./types";
/**
 * Swimlane scene builder.
 *
 * Each category (oAccessor) defines a horizontal lane.
 * Items within a lane are stacked left-to-right (or bottom-to-top in vertical),
 * colored by subcategory (stackBy/colorBy). Unlike a standard stacked bar,
 * multiple items with the same subcategory can appear in the same lane —
 * they simply stack sequentially.
 */
export declare function buildSwimlaneScene(ctx: OrdinalSceneContext, _layout: OrdinalLayout): OrdinalSceneNode[];
