(Resolved) Help on creating a Camera Flash (script provided)

Alright guys, still learning my way around scripting. For this, all I need is when the left mouse button is clicked, a quick flash of a light (from a spotlight attached to the players head) would be initiate.

 var Flash : Light;
 var FlashLength = 0.1;
 var maxScale = 0.25;
  
 function Update () 
 {
     if (Input.GetMouseButtonDown("0"))
     {
         LightFlashes();
     }
 }
  
 function LightFlashes()
 {
     Flash.active = true;
     yield WaitForSeconds(FlashLength);
     Flash.active = false;
 }

I am getting this error message "Assets/Standard Assets/Scripting/FlashOfLight.js(8,33): BCE0017: The best overload for the method 'UnityEngine.Input.GetMouseButtonDown(int)' is not compatible with the argument list '(String)'."