import type { RenderArgs } from "../args.js";
/**
 * Locate the `plan-viewer.html` template by checking multiple candidate locations and return the first readable path.
 *
 * @returns The filesystem path to the first readable `plan-viewer.html` template.
 * @throws Error if no template file is found in any of the checked locations.
 */
export declare function getTemplatePath(): string;
/**
 * Render a training plan file into the plan-viewer HTML template.
 *
 * Reads the specified input plan (compact YAML or full JSON), validates and expands it as needed,
 * injects the resulting plan JSON into the plan-viewer template, and writes the rendered HTML
 * to the given output file or stdout when no output file is provided.
 *
 * @param args - Rendering arguments containing the input file path and optional output file path.
 */
export declare function runRender(args: RenderArgs): void;