docs: def get_attributes(self):
          """ Returns the unordered list of attributes
  
          :return: list of strings
          """
          attr = ['chr', 'start', 'stop']
          if self.strandPos is not None:
              attr.append('strand')
          if self.otherPos:
              for i, o in enumerate(self.otherPos):
                  attr.append(o[1])
  
          return attr