What is a generator function in Python?A function that generates random numbersA function that returns a generator objectA function that generates sequences of values lazilyA function that generates functions

A generator function in Python is a function that returns a generator object. It is used to generate sequences of values lazily, meaning it generates values on the fly and only when required, rather than storing them in memory. This makes generator functions very efficient when working with large data sets. They are defined like a normal function but with the 'yield' keyword instead of 'return'. This 'yield' keyword pauses the function and saves its state for resumption later on from where it left off, enabling function to produce a series of results over time, rather them computing them at once and sending them back like a list.