old_contents: import os
  import pdb
  import sys
  import tempfile
  sys.path.append("/opt/tosca")
  from translator.toscalib.tosca_template import ToscaTemplate
  
  from services.vtn.models import VTNService
  
  from service import XOSService
  
  class XOSVRouterService(XOSService):
      provides = "tosca.nodes.VTNService"
      xos_model = VTNService
      copyin_props = ["view_url", "icon_url", "enabled", "published", "public_key", "versionNumber", 'privateGatewayMac', 'localManagementIp', 'ovsdbPort', 'sshPort', 'sshUser', 'sshKeyFile', 'mgmtSubnetBits']
  
  
new_contents: import os
  import pdb
  import sys
  import tempfile
  sys.path.append("/opt/tosca")
  from translator.toscalib.tosca_template import ToscaTemplate
  
  from services.vtn.models import VTNService
  
  from service import XOSService
  
  class XOSVTNService(XOSService):
      provides = "tosca.nodes.VTNService"
      xos_model = VTNService
      copyin_props = ["view_url", "icon_url", "enabled", "published", "public_key", "versionNumber", 'privateGatewayMac', 'localManagementIp', 'ovsdbPort', 'sshPort', 'sshUser', 'sshKeyFile', 'mgmtSubnetBits']
  
  
subject: fix class name