/**
 * One-pass coordinate normalization for a DiagramDef.
 *
 * The public DiagramDef accepts coordinates in several 1-based forms
 * (A1 strings, `[col, row]` tuples, `{col, row}` objects), and permits
 * nodes to omit `pos` entirely (auto-layout fills them in). Every
 * piece of layout math, integrity checking, and rendering downstream
 * reads canonical 0-based `{col, row}` objects and a fully-populated
 * `nodes[i].pos`. This module is the single place that converts one
 * to the other.
 *
 * Two different consumers used to run the same sequence of
 * `auto-position.ts` helpers — `integrity.ts` (to check regions
 * against a canonical shape) and `Diagram.foldLayers` (to feed the
 * layout pipeline). They now call this function instead, so adding
 * a new coordinate-bearing field only needs to be handled in one
 * place.
 *
 * Pure: the input def is not mutated.
 */
import type { DiagramDef, NormalizedDiagramDef } from './types.js';
export declare function normalizeDiagramDef(def: DiagramDef): NormalizedDiagramDef;
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