Help with patching modded creature drops

[TheDanleyParable]

Hi, I'm trying to make a simple patch that changes the drops of a few creatures, (for this example let's use the fantasy creatures slime) and I'm a little stumped as to how I'm supposed to do this. my current code is as follows: 
[
 {
    file: "fantasycreatures:entities/land/slime",
    op: "addmerge",
    path: "/drops/-",
    value: {
        type: "item"
        code: "stick"
        quantity: {avg: 2, var: 1 }}
}
]

 

I know absolutely nothing about coding, and this is my attempt to learn, so this could be completely wrong, but if anyone can help me figure it out it would be super helpful!

[Spear and Fang]

https://wiki.vintagestory.at/index.php/Modding:CompatibilityLib