Creating a Toggle On Button Press

I'm trying to incorporate an auto-run button into a 2D platformer, and what I have is working, but I'd like it to be more polished.

Code (CSharp):

1. public bool dashAuto = false;
2. public void GetAutoDashInput(InputAction.CallbackContext callbackContext)
3.     {
4.         dashAuto = !dashAuto;
5.     }

Upon pressing and releasing the Autorun key, the toggle works successfully. However, I was looking for something that would work immediately upon pressing the key, and not need to release it in order to change the boolean. How would this be done?