text: module.exports = function (api) {
    const babelEnv = api.env();
    api.cache(true);
  
    const presets = [
      [
        "@babel/preset-env",
        {
          targets: {
            esmodules: true,
          },
          corejs: "3.0.0",
          useBuiltIns: "usage",
        },
      ],
      "@babel/preset-react",
    ];
    const plugins = [
      "@babel/transform-react-constant-elements",
      "transform-react-remove-prop-types",
      "transform-react-pure-class-to-function",
      "@babel/plugin-transform-runtime",
      "react-hot-loader/babel",
  
      // Stage 2 https://github.com/babel/babel/tree/master/packages/babel-preset-stage-2
      ["@babel/plugin-proposal-decorators", { legacy: true }],
      "@babel/plugin-proposal-function-sent",
      "@babel/plugin-proposal-export-namespace-from",
      "@babel/plugin-proposal-numeric-separator",
      "@babel/plugin-proposal-throw-expressions",
  
      // Stage 3
      "@babel/plugin-syntax-dynamic-import",
      "@babel/plugin-syntax-import-meta",
      ["@babel/plugin-proposal-class-properties", { loose: true }],
      "@babel/plugin-proposal-json-strings",
    ];
  
    if (babelEnv === "production") {
      plugins.push(["@babel/plugin-transform-react-inline-elements"]);
    }
  
    return {
      presets,
      plugins,
    };
  };
  