Iterators are methods that iterate collections like lists, tuples, etc. Using an iterator method, we can loop through an object and return its elements.
AsyncIO is a built-in library of Python to write concurrent code using async/await syntax. This library provides high-performance network and web servers, database connection libraries, distributed task queues, etc., for asynchronous programming.
A data class is a list of data set allocation attributes and their values. A data class is a class typically containing mainly data, although there aren’t really any restrictions. It is created using the new `@dataclass` decorator on top of the class definition.