modify what is returned by django objects.create code example

Example 1: django q objects

from django.db.models import Q

obj, created = Person.objects.filter(
    Q(first_name='Bob') | Q(first_name='Robert'),
).get_or_create(last_name='Marley', defaults={'first_name': 'Bob'})

Example 2: pk django

pk is short for primary key, which is a unique identifier for each 
record in a database.