4 from std_msgs.msg 
import Header
 
    8 if __name__ == 
'__main__':
 
    9     rospy.init_node(
'test_contact_sensor')
 
   10     contact_sensor_array_pub = rospy.Publisher(
'contact_sensors_in', ContactSensorArray, latch=
True)
 
   12     while not rospy.is_shutdown():
 
   13         msg = ContactSensorArray()
 
   14         msg.header = Header(frame_id=
"/gazebo_world", stamp=rospy.Time.now())
 
   15         nil_link_sensor = ContactSensor(header=Header(frame_id=
"/gazebo_world", stamp=rospy.Time.now()), contact=
False, link_name=
'nil_link')
 
   16         msg.datas = [nil_link_sensor]
 
   17         contact_sensor_array_pub.publish(msg)