import { Plugin } from 'vite';
import { Options } from '@babel/preset-env';

declare type KnownPolyfill = typeof knownPolyfills[number];
/** Incomplete list of APIs provided by Polyfill.io */
declare const knownPolyfills: readonly ["AbortController", "AudioContext", "CSS.supports", "IntersectionObserver", "Intl", "MutationObserver", "Reflect", "ResizeObserver", "fetch", "globalThis", "queueMicrotask", "requestIdleCallback"];

/** Plugin configuration */
declare type PluginConfig = {
    /** Define which browsers must be supported */
    targets?: Options['targets'];
    /** Define which polyfills to load from Polyfill.io */
    polyfills?: KnownPolyfill[];
    /** Use inlined `core-js@3` modules instead of Polyfill.io */
    corejs?: boolean;
    /** Disable browserslint configuration */
    ignoreBrowserslistConfig?: boolean;
    /**
     * The JS version your legacy bundle is expecting. Set this as low as possible,
     * but keep in mind which JS features your code needs.
     *
     * You can use https://kangax.github.io/compat-table/es2016plus/
     * to know which JS version has the features your bundle needs.
     *
     * @default viteConfig.esbuild.target || "es2020"
     */
    ecmaVersion?: string;
};
declare const _default: (config?: PluginConfig) => Plugin;

export default _default;