 
   @objc func helperSwitchDidChange(helperSwitch: UISwitch) {
     allInputControllers.forEach { controller in
-      controller.helperText = helperSwitch.isOn ? "This is helper text." : nil
+      controller.setHelperText(helperSwitch.isOn ? "This is helper text." : nil,
+                               helperAccessibilityLabel: helperSwitch.isOn ? "This is accessible helper text." : nil) 
     }
   }
 

      MDCTextInputControllerUnderline(textInput: textFieldCustomFontFloating)
    textFieldControllerUnderlineCustomFontFloating.characterCountMax = 40
    textFieldControllerUnderlineCustomFontFloating.placeholderText = "This is a custom font with the works"
    textFieldControllerUnderlineCustomFontFloating.helperText = "Custom Font"
    textFieldControllerUnderlineCustomFontFloating.activeColor = .green
    textFieldControllerUnderlineCustomFontFloating.normalColor = .purple
    textFieldControllerUnderlineCustomFontFloating.leadingUnderlineLabelTextColor = .cyan


    let textFieldControllerBase = MDCTextInputControllerBase(textInput: textFieldBase)
    textFieldControllerBase.placeholderText = "This is the common base class for controllers"
    textFieldControllerBase.setHelperText("It's expected that you'll subclass this.",
                                          helperAccessibilityLabel: "You should subclass this.")

    unstyledTextField.translatesAutoresizingMaskIntoConstraints = false
    scrollView.addSubview(unstyledTextField)
