code: def back(self, back=None, on_stderr=False):
      if back is None:
          back = self._default_back
      self._back = back
      self.set_console(on_stderr=on_stderr)
  
file_path: pyqtgraph/pyqtgraph/util/colorama/winterm.py
imports: from .None import win32
label_desc: Use image node_id 6 for calling the WinTerm obj's underlying member method code with example usage: obj.back(back, on_stderr) without return types