code: public PageImages getPages(String accountId, String templateId, String documentId) throws ApiException {
      return getPages(accountId, templateId, documentId, null);
    }
docs: Returns document page image(s) based on input.
  
  @param accountId The external account number (int) or account ID Guid. (required)
  @param templateId The ID of the template being accessed. (required)
  @param documentId The ID of the document being accessed. (required)
  @return PageImages