import type { ParsedArgs } from "./args.js";
/**
 * Output format requested via `--format`. Defaults to `text`. `json`
 * produces a single machine-readable JSON document on stdout. Other
 * values are treated as `text`.
 */
export type OutputFormat = "text" | "json";
export declare function resolveFormat(args: ParsedArgs): OutputFormat;
export declare function isJson(args: ParsedArgs): boolean;
/**
 * Print a value as pretty-printed JSON to stdout (with a trailing
 * newline so editors / pagers terminate cleanly). The value goes
 * through `JSON.stringify`, which respects any `toJSON()` methods —
 * notably, `todo()` sentinels serialise to `{ "$todo": "reason" }`.
 */
export declare function emitJson(value: unknown): void;
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