text: import { nodeResolve } from '@rollup/plugin-node-resolve';
  import commonjs from '@rollup/plugin-commonjs';
  import json from '@rollup/plugin-json';
  
  export default {
    input: './src/umd-viewer-src.min.js',
    output: {
      file: './dist/umd-viewer.min.js',
      format: 'es'
    },
    plugins: [nodeResolve(), commonjs(), json()]
  };