问运行带有exec节点的Python脚本，然后在node red中解析为带有函数节点的javascript

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import time 
import RPi.GPIO as GPIO

vibe = 4

GPIO.setmode(GPIO.BCM)
GPIO.setup(vibe, GPIO.IN)

def callback(Vibe):
    if GPIO.input(vibe):
        sensor = "vibration"
        print(sensor)

    else:
        print("error")

GPIO.add_event_detect(vibe, GPIO.BOTH, bouncetime=300)
GPIO.add_event_callback(vibe, callback)

while True:
    time.sleep(1)

GPIO.cleanup()

var vibrationSensor = msg.payload;

var sensor = str.substr(1,15);

msg.payload = {

    "vibration": sensor,

};

return msg;