Collider Vision AI question. Solved!

Yo.

How would I make a collider like a vision box/cone that activates and deactivates on a bool... and more importantly how would make it use a specific collider for this within the children of the AI object?

Do I have to use use OnTriggerStay()? Or can I use void VisionBox()? and in that void how would I define the VisionCollider? Do I use all colliders as a vision collider?

Pseudo Code:

     public Collider VisionCollider; // this sets the collider for the vision.
     
     bool activateVision = false;
     
     // this is the initial raycast that would be used to activate the vision.
     void Raycasting
     
     if(physics...bla bla bla {
     
     // target sighted
     activateVision = true;
     
     void Update(){
     
     if(activateVision == true){
        
        VisionBox(); //?? 
     
     }else{
     
     
     }
 
 
 //what to do here is where I'm lost    
     VisionBox(){
 
 
 
 
 }