text: from time import sleep
  
  RECYCLABLE_LED_PIN = 15
  NON_RECYCLABLE_LED_PIN = 7
  CONTROL_LED_PIN = 25
  
  
  class LedPanel:
      def __init__(self):
          from gpiozero import LED
          self._control = LED(CONTROL_LED_PIN)
          self._recyclable = LED(RECYCLABLE_LED_PIN)
          self._non_recyclable = LED(NON_RECYCLABLE_LED_PIN)
  
      def control(self):
          self._control.on()
          sleep(1)
          self._control.off()
  
      def recyclable(self):
          self._recyclable.on()
          sleep(1)
          self._recyclable.off()
  
      def non_recyclable(self):
          self._non_recyclable.on()
          sleep(1)
          self._non_recyclable.off()
  
      def led_check(self):
          self.control()
          self.recyclable()
          self.non_recyclable()
          self.blink_all()
  
      def blink_all(self):
          self._control.on()
          self._recyclable.on()
          self._non_recyclable.on()
          sleep(1)
          self._control.off()
          self._recyclable.off()
          self._non_recyclable.off()
  