How does the use of type hints in code affect the program's execution speed?

In Python, type hints do not affect the execution speed of the program, as they are only used for static code analysis and are not checked at runtime. The interpreter ignores type annotations, so performance remains the same as without them. Type hints help developers and tools (such as IDEs, linters, static type systems like mypy) to find errors during coding, but they do not speed up or slow down the program itself.