code: def window(self, window_name):
          
          if self._driver.w3c:
              self._w3c_window(window_name)
              return
          data = {'name': window_name}
          self._driver.execute(Command.SWITCH_TO_WINDOW, data)
docs: Switches focus to the specified window.
  
          :Args:
           - window_name: The name or window handle of the window to switch to.
  
          :Usage:
              ::
  
                  driver.switch_to.window('main')