code: def program_dump2ascii_lines(self, dump, program_start=None):
          
          dump = bytearray(dump)
          # assert isinstance(dump, bytearray)
  
          if program_start is None:
              program_start = self.DEFAULT_PROGRAM_START
          return self.listing.program_dump2ascii_lines(dump, program_start)
docs: convert a memory dump of a tokensized BASIC listing into
          ASCII listing list.