code: def stop(self):
          
          if self._handler is not None:
              sys.settrace(self._previous)
              self._handler = self._previous = None
              if self.threading_support is None or self.threading_support:
                  threading.settrace(self._threading_previous)
                  self._threading_previous = None
docs: Stop tracing. Reinstalls the :ref:`hunter.Tracer.previous` tracer.