code: def handle_debug_backtrace(self, call_id, payload):
          
          frames = payload["frames"]
          fd, path = tempfile.mkstemp('.json', text=True, dir=self.tmp_diff_folder)
          tmpfile = os.fdopen(fd, 'w')
  
          tmpfile.write(json.dumps(frames, indent=2))
          opts = {'readonly': True, 'bufhidden': 'wipe',
                  'buflisted': False, 'swapfile': False}
          self.editor.split_window(path, size=20, bufopts=opts)
          tmpfile.close()
docs: Handle responses `DebugBacktrace`.