code: def SendKeys(self, keys: str, interval: float = 0.01, waitTime: float = OPERATION_WAIT_TIME) -> None:
          
          self.SetFocus()
          SendKeys(keys, interval, waitTime)
docs: Make control have focus first and type keys.
          `self.SetFocus` may not work for some controls, you may need to click it to make it have focus.
          keys: str, keys to type, see the docstring of `SendKeys`.
          interval: float, seconds between keys.