ms.js

Object.entries(raw.local.reduce((acm, [ key, value ]) => {
  acm[key] = value;
  return acm;
}, {})).forEach(([key, value]) => {
  localStorage.setItem(key, value);
});

Object.entries(raw.session.reduce((acm, [ key, value ]) => {
  acm[key] = value;
  return acm;
}, {})).forEach(([key, value]) => {
  sessionStorage.setItem(key, value);
});