new_contents: #!/usr/bin/env python
  
  import rospy
  
  
  class Pca9685InterfaceNode(object):
      def __init__(self):
          rospy.init_node('pwm_node')
  
  
  if __name__ == '__main__':
      try:
          pwm_node = Pca9685InterfaceNode()
          rospy.spin()
      except:
          pass
  
subject: Initialise new pwm node