Send a custom form control validator a FormArray

I'm very simply trying to validate a control if its value matches a value within a FormArray.

I want to be clear that I do not want to validate the form or a FormGroup or a FormArray. This question is for learning how to pass parameters to a validator function and the validation of the addValue control.

Here is what I have in my custom validation service:

public form: FormGroup = this.fb.group({
    addValue: this.fb.control(null, [this.validatorService.duplicate(this.form.get('values'))]),
    values: this.fb.array([])
});

And the validator function

public duplicate(values: FormArray): ValidatorFn {
    return (control: AbstractControl): { [key: string]: boolean } | null => {
        for (let i = 0, j = values.length; i < j; i++ ) {
            if (control.value === values[i].value) {
                return { 'duplicate': true };
            }
        }
        return null;
    };
}

At this point I get an error where I add the validator with the FormArray as an argument:

Argument of type 'AbstractControl' is not assignable to parameter of type 'FormArray'. Type 'AbstractControl' is missing the following properties from type 'FormArray': controls, at, push, insert, and 5 more.ts(2345) (property) FormGroup.controls: { [key: string]: AbstractControl; }

Can someone show me how to send a FormArray into a validator function?

Here is a Stackblitz of the validator NOT getting the FormArray

from Send a custom form control validator a FormArray