Function annotations in python

Function annotations in Python are a way to add metadata to the parameters and return value of functions. They are used to provide additional information about the types or purposes of function arguments and return values. This can be especially helpful for documentation, type checking, and improving code readability. However, it's important to note that function annotations do not enforce type checking at runtime; they are purely informational.

Here's a breakdown of how to use function annotations:

1. **Annotating Parameters:**
You can add annotations to function parameters by placing a