Briefing on generators

A generator is a routine that returns the next sequential value within a loop construct. Generators are commonly used to implement iterators and bring in parallelism. Goroutines are utilized in Go in order to implement generators. To implement parallelism in Go, we can use generators that run in parallel with consumers to produce values. They are typically utilized within a looping construct. Generators can also be parallelized themselves. This is typically done when it's expensive to generate an output and the output can be generated in any order.