export type LogFn = {
    <T extends object>(obj: T, msg?: string, ...args: any[]): void;
    (obj: unknown, msg?: string, ...args: any[]): void;
    (msg: string, ...args: any[]): void;
};
/**
 * Minimal logger interface used for emitting threshold-exceeded warnings.
 * The shape is intentionally pino-compatible so common structured loggers can be
 * passed in directly.
 */
export type Logger = {
    warn: LogFn;
};
/**
 * Default logger used by the executors when no `logger` option is passed. Backed by
 * `console.warn` — only the `warn` method is exposed (the rest of `console` is not
 * part of the surface area).
 *
 * The wrapper resolves `console.warn` at call time so test spies on `console.warn`
 * (and any later console replacement) are picked up.
 */
export declare const defaultLogger: Logger;