import rospy
from std_srvs.srv import Empty, EmptyResponse # you import the service message python classes generated from Empty.srv.
from services_quiz.srv import BB8CustomServiceMessage, BB8CustomServiceMessageResponse
from geometry_msgs.msg import Twist
import time
hi, in reality, the BB8CustomServiceMessage service file we created is used
“from std_srvs.srv import Empty, EmptyResponse”
I couldn’t understand why the service on this line was transferred