How to increase and decrease the animation speed?

What I need is what the speed of the player is, the animation should go faster and slower. Right now, I this little snip of code which Unity doesn’t seem to like it. It also seems that I am not able to access the animation in the ‘Animation Editor’. I also added an ‘Animation Component’ to the Player and from my animations folder, I dragged the animation onto it. If you could help me, it would be greatly appreciated. Thank you.

   //Animation
    var absVel = Mathf.Abs (rigidbody2D.velocity);
    if (absVel < 0.1f) {
    
    	animation["WhaleSwimAnimation"].speed = 0.1f;
    } else 	if (absVel < 0.5f && absVel > 0.1f) {
    
    	animation["WhaleSwimAnimation"].speed = 0.3f;
    } else 	if (absVel < 1 && absVel > 0.51f) {
    
    	animation["WhaleSwimAnimation"].speed = 0.7f;	} 
    else 	if (absVel < 2f && absVel > 1f) {
    
    	animation["WhaleSwimAnimation"].speed = 1f;
    }

since it’s 2D, I found out that you would have to use this:

	var absVel = Mathf.Abs (rigidbody2D.velocity.magnitude);
	if (absVel < 0.1f) {
		anim.speed = 0.1f;
	} else 	if (absVel < 0.5f && absVel > 0.1f) {
		anim.speed = 0.3f;
	} else 	if (absVel < 1 && absVel > 0.51f) {
		anim.speed = 0.7f;
	} else 	if (absVel < 2f && absVel > 1f) {
		anim.speed = 1f;
	}