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This Python snippet showcases the isinstance() function, an effective tool for checking variable types.

Unlike type() ==, which strictly compares the type of a variable to a specific type, isinstance() allows for checking if a variable belongs to a specified type or a tuple of types.

It's particularly useful in scenarios where a variable could be of multiple types (e.g., both str and bool in this case) or when dealing with class inheritance, where you want to check if an object is an instance of a class or its subclasses.

This flexibility makes isinstance() a more versatile and preferred choice in many Python programming situations.