[Help] What is this?

Hello all, I made a packet to make encant, and here is the thing i got. Can someone explain what it is?
Btw someone can tell me what is the case wich correspond to enchant packet?
Thanks

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It's a non finished funcion, crafting. You can work on it, I lost the packet but someone should have it, goodluck.

Ok, I see thanks. Btw can you tell me the case to make to make enchant packet working?