code: def __set_lost_stop_status(self, hgvs_string):
          
          lost_stop_pattern = '^\*\d+[A-Z?]+\*?$'
          if re.search(lost_stop_pattern, hgvs_string):
              self.is_lost_stop = True
              self.is_non_silent = True
          else:
              self.is_lost_stop = False
docs: Check if the stop codon was mutated to something other than
          a stop codon.