declare const LEVELS: Record<string, number>;
export type LogLevel = keyof typeof LEVELS;
export declare function withRequestLogLevel(level: string | undefined, fn: () => unknown): unknown;
/** Stderr-only logger — stdout is reserved for the JSON-RPC protocol. */
export declare function log(level: LogLevel, message: string, extra?: unknown): void;
export {};
//# sourceMappingURL=log.d.ts.map