How do I Make My Character Rotate Smoothly?

The only other forum post about this i could find is 7 years old. it says to use the rotate towards function but that doesn't work for me. it is exactly the same as setting the angle. I am trying to flip my player 180 degrees. please help.

You can use the official Rotate behavior, but you will need to stop it when the sprite reaches the target angle.

It's much easier to use this addon:

c2rexplugins.weebly.com/rex_rotateto.html

You can also rotate the sprite with events, for example "On every tick set angle to anglelerp(sprite.angle, targetAngle, dt)"