text: import json
  
  import rospy
  from std_msgs.msg import String
  
  
  def create_puck_is_not_in_grip():
      movement_vectors_string = (0, 0, 8)
      return json.dumps(movement_vectors_string)
  
  
  def mock_puck_is_not_in_grip(pub):
      rospy.loginfo('Mocking movement_vectors_string (puck not in grip)')
      pub.publish(create_puck_is_not_in_grip())
  
  
  if __name__ == '__main__':
      rospy.init_node('mock_puck_is_not_in_grip', anonymous=True)
  
      movement_publisher = rospy.Publisher('movement_vectors_string', String, queue_size=10)
  
      mock_puck_is_not_in_grip(movement_publisher)
  