def created_at_ist(self, obj): return time_in_ist(obj.created_at)
def updated_at_ist(self, obj): return time_in_ist(obj.updated_at)
def created_at_ist(self, obj): return time_in_ist(obj.created_at)
def updated_at_ist(self, obj): return time_in_ist(obj.updated_at)