Are you saying that you tested and they don't work, or you see an error in the code?
Just saying that you can't convert it this way, pdata will return some kind of pointers that you can't use.
You can convert cs_set_hostage_follow another way by making players use hostages (fake CT team if T...), and i think you can convert cs_get_hostage_follow by hooking each time a user uses one oO
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