CoreData fetchRequest methods

CoreData.md

//  here are the five different ways to set up a fetch request so you’re not caught by surprise:
// 1
let fetchRequest1 = NSFetchRequest<Venue>()
let entity = 
  NSEntityDescription.entity(forEntityName: "Venue",
                             in: managedContext)!
fetchRequest1.entity = entity

// 2
let fetchRequest2 = NSFetchRequest<Venue>(entityName: "Venue")

// 3
let fetchRequest3: NSFetchRequest<Venue> = Venue.fetchRequest()

// 4
let fetchRequest4 = 
  managedObjectModel.fetchRequestTemplate(forName: "venueFR")

// 5
let fetchRequest5 =
  managedObjectModel.fetchRequestFromTemplate(
    withName: "venueFR",
    substitutionVariables: ["NAME" : "Vivi Bubble Tea"])