👉 "Usings" is a concept in computer science, specifically in programming languages and design patterns. It refers to the use of certain constructs or classes within a larger program that are not explicitly defined in the code itself but can be used by other parts of the program to achieve specific goals. For example, consider an object-oriented programming (OOP) framework such as Java or C#. In these frameworks, you might define a class called "Person" which has methods like `sayHello()` and `