/** Returns whether metrics logging should be enabled by default, checking env vars CI and BENCHMARK. */
export declare function isMetricsLoggingRequested(): boolean;
/**
 * Configures an NDJSON logger to output entries to a local file that have an `eventName` associated.
 * Idempotent and automatically called by `setup` if CI or BENCHMARK env vars are set.
 */
export declare function setupMetricsLogger(filename: string): void;
//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoibG9nZ2luZy5kLnRzIiwic291cmNlUm9vdCI6IiIsInNvdXJjZXMiOlsiLi4vLi4vc3JjL2ZpeHR1cmVzL2xvZ2dpbmcudHMiXSwibmFtZXMiOltdLCJtYXBwaW5ncyI6IkFBS0Esd0dBQXdHO0FBQ3hHLHdCQUFnQix5QkFBeUIsWUFFeEM7QUFFRDs7O0dBR0c7QUFDSCx3QkFBZ0Isa0JBQWtCLENBQUMsUUFBUSxFQUFFLE1BQU0sUUFPbEQifQ==