What is docstring in Python?

 A docstring in Python is a special type of comment that provides documentation or additional information about a function, class, or module. It is written in the form of a multi-line string, placed immediately after the definition of the function, class, or module.

For example, if you have a function called "add", you can add a docstring to explain what the function does and what arguments it takes, like this:

Docstrings are used to provide clarity and help to users who might be using your code. They are also used by automated tools like code linters and documentation generators to create documentation for your code. In short, docstrings are an important tool for improving the readability and maintainability of your code.