import type { V2Envelope } from './envelope.js';
import type { OutputFormat } from '../types.js';
export interface EmitOptions {
    format?: OutputFormat;
    isTTY?: boolean;
    timing?: boolean;
    exitCode?: number;
}
/** Call once at CLI boot to anchor --timing measurements. */
export declare function markStart(): void;
export declare function emit<T>(envelope: V2Envelope<T>, opts?: EmitOptions): void;
//# sourceMappingURL=emit.d.ts.map