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module.exports = (api) => {  api.cache.never()  switch (process.env.BABEL_MODE) {    case 'minified':      return {        presets: [          [            '@babel/preset-env',            {              forceAllTransforms: true,              modules: 'umd',            },          ],          [            'minify',            {              mangle: {                blacklist: {                  generate: true,                  baseGenerator: true,                },              },            },          ],        ],      }    default:      return {        presets: [          [            '@babel/preset-env',            {              forceAllTransforms: true,            },          ],        ],      }  }}