code: def create_external_account(self, name, display_name, type_name,
                                account_configs=None):
      
      return external_accounts.create_external_account(
        self, name, display_name, type_name, account_configs)
docs: Create an external account
      @param name: Immutable external account name
      @param display_name: Display name
      @param type_name: Account type
      @param account_configs: Optional account configuration
      @return: An ApiExternalAccount object