docs: def __get_labels(self):
          """
          Read the label file of the documents and extract all the labels
  
          Returns:
              An array of labels.Label objects
          """
          labels = []
          try:
              with self.fs.open(self.fs.join(self.path, self.LABEL_FILE),
                                  'r') as file_desc:
                  for line in file_desc.readlines():
                      line = line.strip()
                      (label_name, label_color) = line.split(",", 1)
                      labels.append(Label(name=label_name,
                                          color=label_color))
          except IOError:
              pass
          return labels