What is the correct way to write this?

Question

Unity

I'm wondering how to properly write wait until next shot?
After the shot, he must wait one second and again there is an opportunity to shoot, but how to write it correctly?
My decision:

private void Update()
    {
        if (Input.GetButtonDown("Fire1") && CanFire)
        {
            GameObject Bullet = Instantiate(BulletPrefab, FirePoint.position, transform.rotation);
            Bullet.GetComponent<Rigidbody2D>().AddForce(transform.up * BulletSpeed);
            CanFire = false;
            Invoke("FireRateFunc", FireRate);
        }
    }

    private void FireRateFunc()
    {
        CanFire = true;
    }

Answer 1

IEnumerator ExecuteAfterTime(float timeInSec)
{
yield return new WaitForSeconds(timeInSec);
// do the right thing
}
I think you need this function