docs: def get_barcode_stats(self, barcode):
          """
          Loads the JSON in a ${barcode}_stats.json file in the DNAnexus project (usually in the qc
          folder). 
          """
          filename = barcode + "_stats.json"
          # In the call to dxpy.find_one_data_object() below, I'd normally set the 
          # more_ok parameter to False, but this blows-up in Python 3.7 - giving me a RuntimeError. 
          # So, I just won't set it for now. I think dxpy is still mainly a Python 2.7 library and
          # can break in later version of Python3. 
          file_id = dxpy.find_one_data_object(
              zero_ok=False,
              project=self.dx_project_id,
              name=filename)["id"]
          json_data = json.loads(dxpy.open_dxfile(file_id).read())
          return json_data