Bulk update GA permissions on script.google.com

function listAccounts() {
  var accounts = Analytics.Management.Accounts.list();
  if (accounts.items && accounts.items.length) {
    for (var i = 0; i < accounts.items.length; i++) {
      var account = accounts.items[i];

      if (account.permissions.effective.indexOf("EDIT") !== 1) {
        continue;
      }
      
      var body = {
        permissions: {
          local: ["READ_AND_ANALYZE"]
        },
        userRef: {
          email:
            "xxxx"
        }
      };
      Analytics.Management.AccountUserLinks.insert(body, account.id);
    }
  } else {
    Logger.log("No accounts found.");
  }
}