extension-develop/dist/webpack/plugin-compatibility/feature-polyfill.d.ts

The develop step of Extension.js

import { Compiler } from '@rspack/core';
import { PluginInterface } from '../webpack-types';
/**
 * PolyfillPlugin is responsible for providing the `browser`
 * global variable to the extension's codebase.
 */
export declare class PolyfillPlugin {
    readonly manifestPath: string;
    readonly browser?: string;
    constructor(options: PluginInterface);
    apply(compiler: Compiler): void;
}