code: def flush(**kwargs):
      
  
      expression = lambda target, table: target.execute(table.delete())
      test = lambda target, table: not table.exists(target)
      op(expression, reversed(metadata.sorted_tables), test=test,
         primary='flush', secondary='flush', **kwargs)
docs: Flush the specified names from the specified databases.
  
      This can be highly destructive as it destroys all data.