PreventItemPickup

Hello, sorry i have an atypical question, and sorry for my english ^^

i have rent a coder to make a plugin for me, i have a problem with mobs taking stuff when people die, and i see on MM we can stop that with

PreventItemPickup [true/false]

• Prevents mobs from picking up items.
• Defaults to true.

i would like to know how MM manage to do that, my coder said there is no event for this, and cant do this

do you have an idea ?

thanks