import { Md2PdfError } from '../errors/index.js';
import type { CliOptions } from './options.js';
export declare const EXIT: {
    OK: number;
    USAGE_ERROR: number;
    ENVIRONMENT_ERROR: number;
    INTERNAL_BUG: number;
};
export declare function jsonOut(data: object): void;
export declare function renderCliError(err: Md2PdfError, options: CliOptions): void;
/** Minimal interface satisfied by both ora and the noop fallback. */
export interface SpinnerLike {
    start(): void;
    stop(): void;
    succeed(text?: string): void;
    warn(text?: string): void;
    fail(text?: string): void;
    info(text?: string): void;
    text: string;
}
/** Silent spinner used when --json-errors or --quiet is active. */
export declare const noopSpinner: SpinnerLike;
/**
 * Emit a structured JSON error to stdout and exit immediately.
 * Used for pre-flight errors that occur before a file is being processed.
 */
export declare function emitJsonErrorAndExit(code: string, title: string, reason: string): never;