is basically "kitty litter".
Shops call it "floor dry" or "oil dry", and it's pretty good at absorbing most liquids.

It's basically dried clay with a high affinity for moisture... water, oil, gas, etc...

The method works well at removing moisture from just about anything.
(Though it's not as quick as K2R, or the alcohol/cornstarch methods)
You'd want to remove engine and all equipment, and fill the fuse with floor dry.
(Or place whatever it is, so that the floor dry will be in full contact with the wet part)
Leave several hours... overnight is best. Next morning, clean it up. It should be dry now.