Some functions are designed to be very flexible and general-purpose. By allowing an arbitrary number of arguments, a function can adapt to a variety of situations.
Variadic parameters are useful when you want to create a function that can take any number of arguments of a specific type without specifying them individually.
If there are multiple pieces of data that are logically related to each other, it makes sense to group them together and return them as a single unit.
In summary *args collects the extra positional arguments as a tuple, while **kwargs collects the extra keyword arguments as a dictionary.
A recursive function typically has a base case that stops the recursion and one or more recursive cases that call the function itself.
Anonymous functions are commonly used in IIFEs (Immediately Invoked Function Expressions), callbacks, closures, event handlers, etc.