Solution

app/cinema/bar.py

@@ -0,0 +1,7 @@
+from app.people.customer import Customer
+
+
+class CinemaBar:
+    @staticmethod
+    def sell_product(product: str, customer: "Customer") -> None:
+        print(f"Cinema bar sold {product} to {customer.name}.")

app/cinema/hall.py

@@ -0,0 +1,15 @@
+from app.people.customer import Customer
+from app.people.cinema_staff import Cleaner
+
+
+class CinemaHall:
+    def __init__(self, number: int) -> None:
+        self.number = number
+
+    def movie_session(self, movie_name: str, customers: list["Customer"],
+                      cleaning_staff: "Cleaner") -> None:
+        print(f"\"{movie_name}\" started in hall number {self.number}.")
+        for customer in customers:
+            customer.watch_movie(movie_name)
+        print(f"\"{movie_name}\" ended.")
+        cleaning_staff.clean_hall(self.number)

app/main.py

@@ -1,6 +1,20 @@
 # write your imports here
+from app.cinema.bar import CinemaBar
+from app.cinema.hall import CinemaHall
+from app.people.cinema_staff import Cleaner
+from app.people.customer import Customer
 
 
-def cinema_visit(customers: list, hall_number: int, cleaner: str, movie: str):
-    # write you code here
-    pass
+def cinema_visit(customers: list, hall_number: int,
+                 cleaner: str, movie: str) -> None:
+    # creating instances
+    customer_objects = [Customer(name=c["name"],
+                                 food=c["food"]) for c in customers]
+    cinema_bar = CinemaBar()
+    cleaner_staff = Cleaner(cleaner)
+
+    # implementation of cinema work
+    for customer in customer_objects:
+        cinema_bar.sell_product(product=customer.food, customer=customer)
+    cinema_hall = CinemaHall(hall_number)
+    cinema_hall.movie_session(movie, customer_objects, cleaner_staff)

app/people/cinema_staff.py

@@ -0,0 +1,6 @@
+class Cleaner:
+    def __init__(self, name: str) -> None:
+        self.name = name
+
+    def clean_hall(self, hall_number: int) -> None:
+        print(f"Cleaner {self.name} is cleaning hall number {hall_number}.")

app/people/customer.py

@@ -0,0 +1,7 @@
+class Customer:
+    def __init__(self, name: str, food: str) -> None:
+        self.name = name
+        self.food = food
+
+    def watch_movie(self, movie: str) -> None:
+        print(f"{self.name} is watching \"{movie}\".")