code: def ingest(self, co, classname=None, code_objects={}, show_asm=None):
          
          tokens, customize = scan.Scanner21.ingest(self, co, classname, code_objects, show_asm)
          for t in tokens:
              if t.op == self.opc.UNPACK_LIST:
                  t.kind = 'UNPACK_LIST_%d' % t.attr
              pass
          return tokens, customize
docs: Pick out tokens from an uncompyle6 code object, and transform them,
          returning a list of uncompyle6 Token's.
  
          The transformations are made to assist the deparsing grammar.