from django.db import modelsclass parent(models.Model): name = models.CharField()class childA(models.Model): parent = models.ForeignKey(parent) some_field = models.CharField()class childB(models.Model): parent = models.ForeignKey(parent) some_other_field = models.CharField() some_field = #How to tie to some_field (multiple) from childA with same parent as childB's?#USING manage.py shellp = objects.all()[0] #first parentchildb = p.childB_set.all()[0] #first childB object under pprint childb.parent.childA_set.all() # Returns list of childA objects#How to get the same result in the models.py?