Access numberOfRowsInComponent from iCloud

My project has a UIPickerView and I need to return the count of an array for numberOfRowsInComponent.

Heres my code so far:

import UIKit
import CloudKit
class SecondViewController: UIViewController, UIPickerViewDelegate, UIPickerViewDataSource  {
    var db:CKDatabase?
    var currentRecords:[CKRecord] = []
    var currentRecordsInt:[Int] = []
    var numb: Int = 0
    var numbReturn: Int = 0
   
    @IBOutlet weak var pickCar: UIPickerView!
   
    override func viewDidLoad() {
        /
        self.pickCar.delegate = self
        self.pickCar.dataSource = self
        db = CKContainer.default().privateCloudDatabase
        super.viewDidLoad()
        /
    }
   
    func numberOfComponents(in pickerView: UIPickerView) -> Int {
        return 1
    }

    func getCarArrayNumb()   -> Int {
       
                let predicate = NSPredicate(value: true)
                let query = CKQuery(recordType: "mpgTracker", predicate: predicate)
       
        db?.perform(query, inZoneWith: nil, completionHandler: { (records:[CKRecord]?, e:Error?) in
            if e != nil {
                return
            }
            self.currentRecords = records!
            var record: CKRecord = records![0]
            print("getCarArrayNumb record.allKeys() \(record.allKeys())")   // OK, expected array
           
            var counts: [String: Int] = [:]
           
            var numb: Int = 0
           
            func countNumb() -> Int {
            for item in record.allKeys() {
                counts[item] = (counts[item] ?? 0) + 1
                numb = numb + 1
            }
                print("return numb: \(numb)")   //     13
                return numb
            }
            print("countNumb: \(countNumb())")  //     13
        })
        return 1
    }
  
    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        return getCarArrayNumb()
    }
   
    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
       
        return ""
    }

I'm sure the answer is simple but so far it alludes me.

Thanks for any help!!

~paul