如何在attributedPlaceholder中设置辅助功能标识符

// 导入必要的头文件
import UIKit

// 创建一个UITextField对象
let textField = UITextField()

// 创建一个NSMutableAttributedString对象
let attributedString = NSMutableAttributedString(string: "请输入文本")

// 设置辅助功能标识符的属性
let attributes: [NSAttributedString.Key: Any] = [
    .font: UIFont.systemFont(ofSize: 14),
    .foregroundColor: UIColor.gray
]
let range = NSRange(location: 0, length: attributedString.length)
attributedString.addAttributes(attributes, range: range)

// 将NSMutableAttributedString对象赋值给UITextField的attributedPlaceholder属性
textField.attributedPlaceholder = attributedString