old_contents: module.exports = {
    CREATE_SUCCESS: 'structure.create.success',
    CREATE_ERROR:   'structure.create.error',
    LIST_SUCCESS:   'structure.list.success',
    LIST_ERROR:     'structure.list.error',
    GET_SUCCESS:    'structure.get.success',
    GET_ERROR:      'structure.get.error',
    UPDATE_SUCCESS: 'structure.update.success',
    UPDATE_ERROR:   'structure.update.error'
  };
new_contents: module.exports = {
    types: {
      ARRAY: 'array'
    },
    viewers: {
      ARRAY: 'ArrayViewer'
    },
    editors: {
      ARRAY: 'ArrayEditor'
    }
  };
subject: modify structureconstants