Old and new mogenerator output snippets.

New Output Snippet.swift

// DO NOT EDIT. This file is machine-generated and constantly overwritten.
// Make changes to Category.swift instead.

import CoreData

@objc public
class _Category: NSManagedObject {

	public struct Attributes {
		static let displayName = "displayName"
		static let id = "id"
	}

	public struct Relationships {
		static let filters = "filters"
	}

    // MARK: - Class methods

    public class func entityName () -> String {
        return "Category"
    }
    
    ...

Old Output Snippet.swift

// DO NOT EDIT. This file is machine-generated and constantly overwritten.
// Make changes to Category.swift instead.

import CoreData

public enum CategoryAttributes: String {
    case displayName = "displayName"
    case id = "id"
}

public enum CategoryRelationships: String {
    case filters = "filters"
}

@objc public
class _Category: NSManagedObject {

    // MARK: - Class methods

    public class func entityName () -> String {
        return "Category"
    }
    
    ...