👉 In the context of computer programming, an "oiler" is a type of object that can be used as a placeholder or temporary substitute in a program. This means that it can act like a variable but has its own value and can be used without needing to explicitly declare it as such. For example, consider a class `Person` with a field `age`. The `oiler` method could be defined as: ```cpp class Person { public: int age; // This