Script for Unity to play a sound when a Collider 2D is touched by another Collider 2D

CollisionSound.cs

//
//  CollisionSound.cs
//
//  Created by Rigoberto Sáenz Imbacuán (https://linkedin.com/in/rsaenzi/)
//  Copyright © 2021. All rights reserved.
//

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[RequireComponent(typeof(Collider2D))]
[RequireComponent(typeof(AudioSource))]

public class CollisionSound : MonoBehaviour {

    private AudioSource source;

    void Awake() {
        source = this.GetComponent<AudioSource>();
    }

    void OnCollisionEnter2D(Collision2D collision) {
        if (source.clip != null) {
            source.Play();
        }
    }
}