/**
 * Returns `true` if the value is a function.
 * @param value The value to check.
 *
 * @example
 * ```typescript
 * isFunction(() => {}); // => true
 * isFunction(function() {}); // => true
 * isFunction(async () => {}); // => true
 * isFunction(function*() {}); // => true
 * isFunction(async function*() {}); // => true
 * isFunction(new Function()); // => true
 * isFunction(function*() {}.bind(null)); // => true
 * isFunction(async function*() {}.bind(null)); // => true
 * isFunction(new Proxy(() => {}, {})); // => true
 * isFunction(''); // => false
 * ```
 */
declare const isFunction: (
  value: unknown,
) => value is (...args: unknown[]) => unknown;
export default isFunction;
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