code: public UploadStatusEnvelope getUploadStatus(String dtid, String uploadId) throws ApiException {
          ApiResponse<UploadStatusEnvelope> resp = getUploadStatusWithHttpInfo(dtid, uploadId);
          return resp.getData();
      }
docs: Get the status of a uploaded CSV file.
  Get the status of a uploaded CSV file.
  @param dtid Device type id related to the uploaded CSV file. (required)
  @param uploadId Upload id related to the uploaded CSV file. (required)
  @return UploadStatusEnvelope
  @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body