Accept party invite GWA2

I have seen following header defined :

Global Const $HEADER_INVITE_ACCEPT = 0x9A ;Accept invitation to party

However never saw an implementation of this header in any GWA2 library.

Does anyone have a working func for this? I tried already sending a packet similarly to how ' $HEADER_PARTY_LEAVE = 0xA0' would send a packet but no results.

.

Use the SendPacket function with 3 arguments, first is the size 8, then the header 0x9A, and the third is the agent_id of the player sending you the invite