code: def SetTopmost(self, isTopmost: bool = True, waitTime: float = OPERATION_WAIT_TIME) -> bool:
          
          if self.IsTopLevel():
              ret = SetWindowTopmost(self.NativeWindowHandle, isTopmost)
              time.sleep(waitTime)
              return ret
          return False
docs: Set top level window topmost.
          isTopmost: bool.
          waitTime: float.