generic
Domain: Validation Typing
🎯 Motivation
Generic lets you write classes and functions that work with any type while keeping type safety. It is how containers like list[int] or dict[str, User] specify what they hold.
📋 Concrete Example
class Stack(Generic[T]): def push(self, item: T): ... lets you create Stack[int]() for integers or Stack[str]() for strings, with mypy checking you never mix them.
🔗 Analogy
Generic is like a universal container labeled “contents: T.” You decide what T is each time, and the label ensures you never accidentally pour soup into a toolbox.