code: async def get_property(self, command):
          
          _LOGGER.debug("Getting property %s", command)
          if self.__checkLock():
              return BUSY
          timeout = self.__get_timeout(command)
          response = await self.send_request(
              timeout=timeout,
              params=EPSON_KEY_COMMANDS[command],
              type='json_query')
          if not response:
              return False
          try:
              return response['projector']['feature']['reply']
          except KeyError:
              return BUSY
docs: Get property state from device.