// at top
using UnityEngine.InputSystem;

// update

private float strafeAmount = 0.0f;
void Update(){
  playerRb.AddForce(transform.left * strafeAmount * speed * Time.deltaTime); 
}

// Send Message events

// 1d axis event
private void OnStrafe(InputValue value){
  strafeAmount = value.Get<float>();
}

// button event
private void OnFire(){
  shoveInput = value.Get<float>();
}