declare module '*.png';
declare module '*.jpg';
declare module '*.jpeg';
declare module '*.gif';
declare module '*.svg';
declare module '*.webp';

declare type Recordable<T = any> = Record<string, T>;

declare interface Fn<T = any, R = T> {
  (...arg: T[]): R;
}

declare type TimeoutHandle = ReturnType<typeof setTimeout>;

declare type ElRef<T extends HTMLElement = HTMLDivElement> = Nullable<T>;

declare interface ComponentElRef<T extends HTMLElement = HTMLDivElement> {
  $el: T;
}

declare type ComponentRef<T extends HTMLElement = HTMLDivElement> = ComponentElRef<T> | null;

declare interface ComponentElRef<T extends HTMLElement = HTMLDivElement> {
  $el: T;
}

declare type ComponentRef<T extends HTMLElement = HTMLDivElement> = ComponentElRef<T> | null;

declare type Nullable<T> = T | null;
declare type NonNullable<T> = T extends null | undefined ? never : T;

declare global {
  // declare type Nullable<T> = T | null;
}