Timeline Curve resources/presets ?

In the linked below tutorial the author states in step 1 “This curve was added from the Content Browser using the Flicker Curve asset.” That seems to imply that there is a resource of preset curves available? I checked Starter Content, Engine Content, and Animation Starter Pack. I did not find a folder of curve presets. This would be a cool and time saving thing to have. Am I just missing it somewhere? Is it under some unexpected name or folder?