docs: def migrate(ctx,):
      """Migrate an old loqusdb instance to 1.0
      """
      adapter = ctx.obj['adapter']
      
      start_time = datetime.now()
      
      nr_updated = migrate_database(adapter)
      
      LOG.info("All variants updated, time to complete migration: {}".format(
          datetime.now() - start_time))
      LOG.info("Nr variants that where updated: %s", nr_updated)