import { type GeneratorFactory } from "../generator.js";
export interface MermaidErOptions {
    /** Output path relative to the target's outDir. Defaults to "docs/model.md". */
    outFile?: string;
    /** Named output target. */
    target?: string;
}
/**
 * Emit a single Markdown file containing a Mermaid `erDiagram` plus per-entity
 * prose sections. The renderer walks the loaded root for all entities; the
 * default outFile is "docs/model.md".
 *
 * TIER NOTE (ADR-0020): the CANONICAL home of the neutral ER diagram is now the
 * neutral docs engine — the OVERVIEW/index page (`README.md`) emitted by
 * `docsFile()` / `meta docs` embeds the SAME `renderMermaidErBlock()` this
 * generator's `renderMermaidModel()` reuses. This standalone Tier-1 generator is
 * retained ONLY as a thin back-compat wrapper for adopters that already have
 * `mermaidErDiagram` in their `meta gen` config; it adds NO ER logic of its own
 * (no duplication) — it delegates to the shared `renderMermaidModel()` builder.
 *
 * @deprecated ADR-0021 D1: the ER diagram is a Tier-2 neutral artifact owned by
 * the docs engine (ADR-0020). Use `meta docs` — it embeds the same ER block.
 * This standalone `meta gen` generator is flagged neutral in the registry
 * (`--list`) and is no longer part of the recommended native suite. Kept for
 * back-compat; do not add to new gen configs.
 */
export declare const mermaidErDiagram: GeneratorFactory<MermaidErOptions>;
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