old_contents: from odk_logger.models.instance import Instance
  from restservice.models import RestService
  
  def call_service(instance):
      print "call_service has been called!"
      # lookup service
      if isinstance(instance, Instance):
          # registered services
          services = RestService.objects.filter(xform=instance.xform)
          # call service send with url and data parameters
          for sv in services:
              # TODO: Queue service
              service = sv.get_service_definition()()
              service.send(sv.service_url, instance)
  
new_contents: from odk_logger.models.instance import Instance
  from restservice.models import RestService
  
  def call_service(instance):
      # lookup service
      if isinstance(instance, Instance):
          # registered services
          services = RestService.objects.filter(xform=instance.xform)
          # call service send with url and data parameters
          for sv in services:
              # TODO: Queue service
              service = sv.get_service_definition()()
              service.send(sv.service_url, instance)
  
subject: remove print statment