code: func (s *PrivateAccountAPI) NewAccount(password string) (common.Address, error) {
  	acc, err := fetchKeystore(s.am).NewAccount(password)
  	if err == nil {
  		return acc.Address, nil
  	}
  	return common.Address{}, err
  }
docs: // NewAccount will create a new account and returns the address for the new account.