Question Unity XR Input: Possible to simulate a InputDevice event via a string?

Unity XR Input: Possible to simulate input events via a fake InputDevice? For example, I input a string "grip" at Input Field(UI), the XRcontroller will grip a object.
I know a idea come from https://forum.unity.com/threads/uni...put-events-via-a-fake-inputdevice.905738/,but now it seem broken.
Because the m_xrController.GetType().GetNestedTypes return nothing.

Code (CSharp):

1. private Type GetNestedType(object obj, string typeName)
2.   {
3.     foreach (var type in m_xrController.GetType().GetNestedTypes(BindingFlags.NonPublic | BindingFlags.Public))
4.     {
5.       if (type.Name == typeName)
6.       {
7.         return type;
8.       }
9.     }
10.     return null;
11.   }

Thanks