Learn how to define a TypedDict that accepts extra items of a given type. A TypedDict is a type constructor that allows creating specialised types for dictionaries that have a fixed set of string keys: from typing import TypedDict class Movie(TypedDict): title: str year: int The snippet above creates a new type Movie that represents dictionaries with the key "title" and a string value, and the key "year" and an integer value: forrest_gump = {"title": "Forrest Gump", "year": 1994} In Python 3.15, TypedDict was improved to allow specifying whether or not the dictionary may have other keys and what must...