import type { AnyAsyncFunctionReturning, AnyFunctionReturning } from "../core.js";
/**
 * Executes the given function and measures how long the execution takes.
 * @param context - The function of which the execution speed should be measured.
 * @returns A tuple with the result of the function, and the execution time in milliseconds.
 */
export declare const measure: <TReturn>(context: AnyFunctionReturning<TReturn>) => [TReturn, number];
/**
 * Executes the given async function and measures how long the execution takes.
 * @param context - The async function of which the execution speed should be measured.
 * @returns A tuple with the result of the function, and the execution time in milliseconds.
 */
export declare const measureAsync: <TReturn>(context: AnyAsyncFunctionReturning<TReturn>) => Promise<[TReturn, number]>;