code: def send_keys(self, keyString):
          
          assert type(keyString) is str
          self.mediator.interface.begin_send()
          try:
              self.mediator.send_string(keyString)
          finally:
              self.mediator.interface.finish_send()
docs: Send a sequence of keys via keyboard events
          
          Usage: C{keyboard.send_keys(keyString)}
          
          @param keyString: string of keys (including special keys) to send