<s> """<STR_LIT>""" <EOL> from django . db import models <EOL> class TrackingFields ( models . Model ) : <EOL> """<STR_LIT>""" <EOL> date_created = models . DateTimeField ( auto_now_add = True ) <EOL> date_update = models . DateTimeField ( auto_now = True ) <EOL> date_deleted = models . DateTimeField ( blank = True , null = True ) <EOL> class Meta : <EOL> abstract = True </s>
