/**
 * Dependency-graph (DAG) rendering. Produces Graphviz DOT for the `dependsOn`
 * graph: one node per table (labelled with the table name only), clustered by
 * schema, with an edge from each upstream table to each downstream table.
 *
 * The DOT is built deterministically (schemas, tables, and edges are sorted) so
 * the rendered SVG is stable and diff-friendly.
 */
import { World } from '../world';
/**
 * Build Graphviz DOT for the dependency DAG of a loaded root.
 *
 * @param world The loaded dataset root.
 * @returns A DOT `digraph` document.
 */
export declare function buildDagDot(world: World): string;