def truncate(self, app_label, schema_editor, models):
for model_name in models:<EOL><INDENT>model = '<STR_LIT>' % (app_label, model_name)<EOL>schema_editor.execute(<EOL>'<STR_LIT>' % (<EOL>model.lower(),<EOL>),<EOL>)<EOL><DEDENT>
Truncate tables.