👉 The "add fluid" function is a tool used in programming, particularly in Python, to dynamically insert or modify data within existing data structures like lists or dictionaries. It allows developers to seamlessly add new elements or modify existing ones without altering the original structure, making it easier to manipulate and maintain code. For example, if you have a list of items and want to add a new item at the end, using "add fluid" simplifies this process by providing a concise and readable way to update the list. This function enhances code flexibility and readability, especially in scenarios where data needs to be frequently adjusted or extended.