code: def _domain_event_disk_change_cb(conn, domain, old_src, new_src, dev, reason, opaque):
      '''
      Domain disk change events handler
      '''
      _salt_send_domain_event(opaque, conn, domain, opaque['event'], {
          'oldSrcPath': old_src,
          'newSrcPath': new_src,
          'dev': dev,
          'reason': _get_libvirt_enum_string('VIR_DOMAIN_EVENT_DISK_', reason)
      }f _domain_event_disk_change_cb(conn, domain, old_src, new_src, dev, reason, opaque):
      '''
      Domain disk change events handler
      '''
      _salt_send_domain_event(opaque, conn, domain, opaque['event'], {
          'oldSrcPath': old_src,
          'newSrcPath': new_src,
          'dev': dev,
          'reason': _get_libvirt_enum_string('VIR_DOMAIN_EVENT_DISK_', reason)
      })
docs: Domain disk change events handler