In Python generally, we can use isinstance () to make decisions based on whether or not something is a given type. typing.TypeIs lets us do the same thing in Python’s type hinting mechanisms.

Data Types: Python supports various data types, including integers, strings, and floats. Understanding these types and how to convert between them is essential for effective programming.

I've grabbed Sequence from the typing module, which includes all three Python sequence types—strings, lists and tuples. Once I do that, all of the mypy problems disappear, because all of the arguments ...