old_contents: function _r(p) { return require('babel-plugin-' + p) }
  
  module.exports = {
    plugins: [
     [_r('transform-es2015-template-literals'), {'loose': true}],
      _r('transform-es2015-literals'),
      _r('transform-es2015-function-name'),
      _r('transform-es2015-arrow-functions'),
      _r('transform-es2015-block-scoped-functions'),
     [_r('transform-es2015-classes'), {'loose': true}],
      _r('transform-es2015-object-super'),
      _r('transform-es2015-shorthand-properties'),
     [_r('transform-es2015-computed-properties'), {'loose': true}],
     [_r('transform-es2015-for-of'), {'loose': true}],
      _r('transform-es2015-sticky-regex'),
      _r('transform-es2015-unicode-regex'),
      _r('check-es2015-constants'),
     [_r('transform-es2015-spread'), {'loose': true}],
      _r('transform-es2015-parameters'),
     [_r('transform-es2015-destructuring'), {'loose': true}],
      _r('transform-es2015-block-scoping'),
      _r('transform-es2015-typeof-symbol'),
     [_r('transform-es2015-modules-commonjs'), { 'allowTopLevelThis': true }],
     [_r('transform-regenerator'), { 'async': false, 'asyncGenerators': false }]
    ]
  }
new_contents: module.exports = {
    plugins: [
     [require('transform-es2015-template-literals'), {'loose': true}],
      require('transform-es2015-literals'),
      require('transform-es2015-function-name'),
      require('transform-es2015-arrow-functions'),
      require('transform-es2015-block-scoped-functions'),
     [require('transform-es2015-classes'), {'loose': true}],
      require('transform-es2015-object-super'),
      require('transform-es2015-shorthand-properties'),
     [require('transform-es2015-computed-properties'), {'loose': true}],
     [require('transform-es2015-for-of'), {'loose': true}],
      require('transform-es2015-sticky-regex'),
      require('transform-es2015-unicode-regex'),
      require('check-es2015-constants'),
     [require('transform-es2015-spread'), {'loose': true}],
      require('transform-es2015-parameters'),
     [require('transform-es2015-destructuring'), {'loose': true}],
      require('transform-es2015-block-scoping'),
      require('transform-es2015-typeof-symbol'),
     [require('transform-es2015-modules-commonjs'), { 'allowTopLevelThis': true }],
     [require('transform-regenerator'), { 'async': false, 'asyncGenerators': false }]
    ]
  }
  
subject: make require static analyzeable