As projects grow in size and complexity, it becomes increasingly important to ensure that code remains understandable and easy to work with. One powerful tool for achieving this is the use of type hints. In this tutorial, we will explain why and how to use type hints in Python. In order to do this, we will define a Python function annotated with type hints as an example.

Why Use Type Hints?

The primary benefit of using type hints is improved code clarity. By explicitly specifying the types of variables and function arguments, developers can make their code easier to understand and reason about. This is especially helpful for collaborators who may be unfamiliar with the codebase or for future maintainers who need to make changes or fix bugs.

Type hints also serve as a form of documentation, providing valuable information about the expected inputs and outputs of functions. This can help prevent bugs and errors by catching type mismatches early in the development process.

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