[CASE test_foreign_key_field_with_related_name] from django.db import models class Publisher(models.Model): pass class Book(models.Model): publisher = models.ForeignKey(to=Publisher, on_delete=models.CASCADE, related_name='books') book = Book() reveal_type(book.publisher) # E: Revealed type is 'main.Publisher*' publisher = Publisher() reveal_type(publisher.books) # E: Revealed type is 'django.db.models.query.QuerySet[main.Book]' [CASE test_foreign_key_field_creates_attribute_with_underscore_id] from django.db import models class Publisher(models.Model): pass class Book(models.Model): publisher = models.ForeignKey(to=Publisher, on_delete=models.CASCADE, related_name='books') book = Book() reveal_type(book.publisher_id) # E: Revealed type is 'builtins.int' [CASE test_foreign_key_field_different_order_of_params] from django.db import models class Publisher(models.Model): pass class Book(models.Model): publisher = models.ForeignKey(on_delete=models.CASCADE, to=Publisher, related_name='books') book = Book() reveal_type(book.publisher) # E: Revealed type is 'main.Publisher*' publisher = Publisher() reveal_type(publisher.books) # E: Revealed type is 'django.db.models.query.QuerySet[main.Book]' [CASE test_to_parameter_as_string_fallbacks_to_any] from django.db import models class Book(models.Model): publisher = models.ForeignKey(to='Publisher', on_delete=models.CASCADE) book = Book() reveal_type(book.publisher) # E: Revealed type is 'Any'