Kong.cache functionality

I am trying to use the cache functinoality in my plugin
(Described https://docs.konghq.com/1.0.x/plugin-development/entities-cache/)

The standard method is that items are added to the cache one at a time as a response to the get call.
However in my function that gets the cache values I will end up with 5 or 6 values to be added to the cache.

Can anyone point me at an example which just sets a cache value without using the get call?