'Solution'

db/models.py

@@ -1 +1,15 @@
 from django.db import models
+
+class Genre(models.Model):
+    name = models.CharField(max_length=255)
+
+    def __str__(self):
+        return self.name
+
+
+class Actor(models.Model):
+    first_name = models.CharField(max_length=255)
+    last_name = models.CharField(max_length=255)
+
+    def __str__(self):
+        return f"{self.first_name} {self.last_name}"

main.py

@@ -1,7 +1,42 @@
 import init_django_orm  # noqa: F401
 
 from django.db.models import QuerySet
+from db.models import Genre, Actor
 
 
 def main() -> QuerySet:
-    pass
+    # Створення
+    western = Genre.objects.create(name="Western")
+    action = Genre.objects.create(name="Action")
+    drama = Genre.objects.create(name="Drama")
+
+    george = Actor.objects.create(first_name="George", last_name="Clooney")
+    keanu = Actor.objects.create(first_name="Keanu", last_name="Reeves")
+    scarlett = Actor.objects.create(first_name="Scarlett", last_name="Keegan")
+    will = Actor.objects.create(first_name="Will", last_name="Smith")
+    jaden = Actor.objects.create(first_name="Jaden", last_name="Smith")
+    scarlett_johansson = Actor.objects.create(
+        first_name="Scarlett", last_name="Johansson"
+    )
+
+    # Оновлення
+    drama.name = "Drama"
+    drama.save()
+
+    george.last_name = "Clooney"
+    george.save()
+
+    keanu.first_name = "Keanu"
+    keanu.last_name = "Reeves"
+    keanu.save()
+
+    # Видалення
+    action.delete()
+    Actor.objects.filter(first_name="Scarlett").delete()
+
+    # Повернення QuerySet акторів із прізвищем Smith, впорядкованих за іменем
+    actors_with_lastname_smith = Actor.objects.filter(
+        last_name="Smith"
+    ).order_by("first_name")
+
+    return actors_with_lastname_smith