Syntax error, ',' expected

Well, I've tried to write a code that turns on the camera, if it collides with the player. For example, if your player is out of any camera's vision range, it switches to the other camera. Actually, IDK if it works correctly or not, but, anyway, it doesn't work at all. "Assets\ToggleCamera.cs(14,63): error CS1003: Syntax error, ',' expected". Why?

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. [code=CSharp]public class ToggleCamera : MonoBehaviour
6. {
7.  
8.     public Collider2D player, camera_collider;
9.  
10.     public Camera camera;
11.  
12.     void Update()
13.     {
14.         if(Physics2D.isTouching(Collider2D player, Collider2D camera_collider))
15.         {
16.             camera.enabled = true;
17.         } else
18.         {
19.             camera.enabled = false;
20.         }
21.     }
22. }

 

if (Physics2D.IsTouching(player, camera_collider))

 

Thanks a lot!