unexpected token error

I tried searching but i still dont understand why do i get many unexpected token errors in first and third line ?

 public class HeldObject : MonoBehaviour {
 
     public bool IsColliding { get; private set; }
 
     private void OnCollisionEnter(Collision collision)
     {
         IsColliding = true;
     }
 
     private void OnTriggerStay(Collider other)
     {
         IsColliding = true;
     }
 
     private void OnCollisionExit(Collision collision)
     {
         IsColliding = false;
     }
 }