Mreyna3

 private func shouldProcessBatch() -> Bool{
    //1
       guard batchSum < BATCH_CAP else {
            return true
       }
       return false
 }

Mreyna3

import UIKit

public class PaymentProcessor {
    
    // Variable Declaration
    
    fileprivate var batchSum : Double!
    private var queue: Queue<Double>!
    private let BATCH_CAP: Double!
    private var defaults: UserDefaults!