code: def save_user_cmd(email, name=None, groups=None, locale='en_US', timezone='US/Eastern'):
      
      if name is None:
          name = email
      if groups is None:
          groups = []
      return SaveUserCmd(name=name, email=email, groups=groups, locale=locale, timezone=timezone)
docs: Command to save a user
      :param email: user email
      :param name: user name
      :param groups: user permission groups
      :return: A command that validate date and save the user