code: public BulkEnvelopeStatus get(String accountId, String batchId) throws ApiException {
      return get(accountId, batchId, null);
    }
docs: Gets the status of a specified bulk send operation.
  Retrieves the status information of a single bulk recipient batch. A bulk recipient batch is the set of envelopes sent from a single bulk recipient file.
  @param accountId The external account number (int) or account ID Guid. (required)
  @param batchId  (required)
  @return BulkEnvelopeStatus