import { AsyncFunction, AsyncGeneratorFunction } from '@terminal-nerds/snippets-type/built-in';

type AnyFunction = (..._args: any) => any;
declare function validateFunction(value: unknown): asserts value is AnyFunction;
/** @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function} Function */
declare function isFunction(value: unknown): value is AnyFunction;
/**
 * Credits: https://github.com/inspect-js/is-arrow-function/blob/main/index.js
 *
 * @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions} Arrow function
 */
declare function isArrowFunction(_function: AnyFunction): boolean;
/** @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions} Simple function */
declare function isSimpleFunction(_function: AnyFunction): boolean;
/** @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/async_function} Async function */
declare function isAsyncFunction(_function: AnyFunction): _function is typeof AsyncFunction;
/** @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/async_function} Async generator function */
declare function isAsyncGeneratorFunction(_function: AnyFunction): _function is typeof AsyncGeneratorFunction;
/** @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function} Generator function */
declare function isGeneratorFunction(_function: AnyFunction): _function is GeneratorFunction;
type FunctionType = 
/** Arrow function `async () => {}` */
"arrow"
/** Arrow and asynchronous function `async () => {}` */
 | "arrow-async"
/** A classic, simple function `function name() {}` */
 | "simple"
/** A classic, simple and asynchronous function `async function name() {}` */
 | "simple-async"
/** A classic, simple, asynchronous and generator function `async function* name() {}` */
 | "simple-async-generator"
/** A classic, simple and generator function `function* name() {}` */
 | "simple-generator";
/** @see {@link FunctionType} */
declare function getFunctionType(_function: AnyFunction): FunctionType;

export { AnyFunction, FunctionType, getFunctionType, isArrowFunction, isAsyncFunction, isAsyncGeneratorFunction, isFunction, isGeneratorFunction, isSimpleFunction, validateFunction };