text: # ----------------------------------------------------------------------
  # vcbindfilter afi
  # ----------------------------------------------------------------------
  # Copyright (C) 2007-2019 The NOC Project
  # See LICENSE for details
  # ----------------------------------------------------------------------
  
  # Third-party modules
  from django.db import models
  
  # NOC modules
  from noc.core.migration.base import BaseMigration
  
  
  class Migration(BaseMigration):
      def migrate(self):
          self.db.add_column(
              "vc_vcbindfilter",
              "afi",
              models.CharField(
                  "Address Family", max_length=1, choices=[("4", "IPv4"), ("6", "IPv6")], default="4"
              ),
          )
  