import type { GraphIR } from "./graph-ir.js";
/**
 * Render the graph IR as a Mermaid `flowchart`. Mermaid is the zero-install
 * default — it renders in GitHub, docs, and browsers with no native dependency,
 * so `chant graph --format mermaid` gives a diagram out of the box without the
 * standalone painter. Lower fidelity than a custom painter, but portable.
 *
 * Consumes whatever IR it is given, so it honours `--detail` and `--lens` for
 * free (those are IR → IR transforms). See issue #496 / epic #492.
 *
 * Known limits: Mermaid owns layout, so there is little control over node
 * placement, and very large graphs get hard to read — that is the trade-off for
 * zero-install portability. Reach for the graphviz/custom-painter path (#497,
 * pinhole) when fidelity matters.
 */
export declare function toMermaid(ir: GraphIR): string;
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