docs: def command_x(self, x, to=None):
          """
          Sends a character to the currently active element with Command
          pressed. This method takes care of pressing and releasing
          Command.
          """
          if to is None:
              ActionChains(self.driver) \
                  .send_keys([Keys.COMMAND, x, Keys.COMMAND]) \
                  .perform()
          else:
              self.send_keys(to, [Keys.COMMAND, x, Keys.COMMAND])