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import { terser } from 'rollup-plugin-terser'import typescript from 'rollup-plugin-typescript2'import size from 'rollup-plugin-size'
const plugins = [  typescript({    tsconfig: 'tsconfig.json',    removeComments: true,    useTsconfigDeclarationDir: true,  }),  terser({    include: ['fre.js'],  }),  size()]
export default {  input: 'src/index.ts',  output: [    { file: 'dist/fre.umd.js', format: 'umd', name: 'fre', sourcemap: true },    { file: 'dist/fre.js', format: 'esm', sourcemap: true },    { file: 'dist/fre.esm.js', format: 'esm', sourcemap: true },  ],  plugins,}