code: public Recipients listRecipients(String accountId, String templateId) throws ApiException {
      return listRecipients(accountId, templateId, null);
    }
docs: Gets recipient information from a template.
  Retrieves the information for all recipients in the specified template.
  @param accountId The external account number (int) or account ID Guid. (required)
  @param templateId The ID of the template being accessed. (required)
  @return Recipients