const _folderCommentInternalTransformer = function (ctx, activityEntities, callback) {
  const transformedActivityEntities = {};
  for (const activityId of _.keys(activityEntities)) {
    transformedActivityEntities[activityId] = transformedActivityEntities[activityId] || {};
    for (const entityId of _.keys(activityEntities[activityId])) {