text: import typescript from 'rollup-plugin-typescript2';
  import cleanup from 'rollup-plugin-cleanup';
  
  export default {
    plugins: [typescript(), cleanup({ extensions: ['ts'] })],
    input: 'src/helphero.ts',
    output: {
      name: 'helphero',
      file: 'dist/helphero.js',
      format: 'umd'
    }
  };
  