react and react-dom have both cjs and umd versions available.

Is it possible to create a umd version of react-test-renderer as well?
global: 'ReactFiberTreeReflection',
    externals: [],
  },
  
  {
    label: 'react-call-return',
    bundleTypes: [NODE_DEV, NODE_PROD],
    moduleType: ISOMORPHIC,
    entry: 'react-call-return',
    global: 'ReactCallReturn',
    externals: [],
  },
  
  {
    label: 'react-is',
    bundleTypes: [NODE_DEV, NODE_PROD, FB_DEV, FB_PROD, UMD_DEV, UMD_PROD],
    moduleType: ISOMORPHIC,
    entry: 'react-is',
    global: 'ReactIs',
    externals: [],
  },
  
  {
    label: 'simple-cache-provider',
    bundleTypes: [NODE_DEV, NODE_PROD],
    moduleType: ISOMORPHIC,
    entry: 'simple-cache-provider',
    global: 'SimpleCacheProvider',
    externals: ['react'],
  },