code: def setBusy(self, busy):
          '''
          Called by the driver to indicate it is busy.
  
          @param busy: True when busy, false when idle
          @type busy: bool
          '''
          self._busy = busy
          if not self._busy:
              self._pump(f setBusy(self, busy):
          '''
          Called by the driver to indicate it is busy.
  
          @param busy: True when busy, false when idle
          @type busy: bool
          '''
          self._busy = busy
          if not self._busy:
              self._pump()
docs: Called by the driver to indicate it is busy.
  
          @param busy: True when busy, false when idle
          @type busy: bool