Looking At an Object with Speed Control?

I know lookAt() can make one object face another one, but is there an alternate lookAt() that can make one object face the next, not instantly, but with a speed?

or can lookAt() take speed arguments?

I know you can code that effect using getH and setH, but I need to avoid that method to fit my cause.

One tool that may help is the LerpHprInterval mentioned in the Manual on the “Lerp Intervals” page.