Check for any input from new input system

Unity Engine
1

I am trying to lock a function until any input has been detected - so key, mouse click, mouse move, controller button or axis. I am using Unity’s new input system. All I can find online is the old input system.

The function I am trying to lock is a CameraRotation function that causes the third person camera to rotate around the player - however depending on where the mouse pointer sits when the game starts, the camera starts facing in a random direction. I figure if I just bool that function until any input is detected, the camera should start facing in the correct direction until the player starts looking around.

2

I’m looking for something like
if (Input.anyKey)

3

There may be clues in here:

4

The UnityEngine.InputSystem.InputSystem has callbacks such as .onEvent that you can use for such a purpose: Class InputSystem | Input System | 1.3.0

There’s tons of other callbacks in this class useful for lots of other things.