/**
 * Mutate the global areBenchRunning
 *
 * @param {boolean} running
 */
export function setAreBenchRunning(running: boolean): void;
/**
 * Set the bench logger
 *
 * @param {import("@compas/stdlib").Logger} logger
 */
export function setBenchLogger(logger: import("@compas/stdlib").Logger): void;
/**
 * The argument passed to benchmark functions
 *
 * @typedef {object} BenchRunner
 * @property {number} N Amount of iterations this call should do
 * @property {() => void} resetTime Reset the start time. Should be used if some setup is
 *   necessary, but shouldn't be counted to wards the time spent.
 */
/**
 * @typedef {(b: BenchRunner) => (void|Promise<void>)} BenchCallback
 */
/**
 * @typedef {object} BenchState
 * @property {string} name
 * @property {number} N
 * @property {string} operationTimeNs
 * @property {Array<number>} executionTimesNs
 * @property {BenchCallback} callback
 * @property {Error|undefined} [caughtException]
 */
/**
 * @type {import("@compas/stdlib").Logger}
 */
export let benchLogger: import("@compas/stdlib").Logger;
/**
 * @type {boolean}
 */
export let areBenchRunning: boolean;
/**
 * @type {Array<BenchState>}
 */
export const state: Array<BenchState>;
/**
 * The argument passed to benchmark functions
 */
export type BenchRunner = {
    /**
     * Amount of iterations this call should do
     */
    N: number;
    /**
     * Reset the start time. Should be used if some setup is
     * necessary, but shouldn't be counted to wards the time spent.
     */
    resetTime: () => void;
};
export type BenchCallback = (b: BenchRunner) => (void | Promise<void>);
export type BenchState = {
    name: string;
    N: number;
    operationTimeNs: string;
    executionTimesNs: Array<number>;
    callback: BenchCallback;
    caughtException?: Error | undefined;
};