Can the function have other arguments when decompiling il2cpp?

Question

reverse engineering

Good evening, I'm trying to modify GameAssembly.dll I
used `il2cpp dumper` and got the code in which I found the function I needed:
`public static int GetAutoBattleTicketsLimit(UserAccount account, UserEffectData effectData, DateTime now); // RVA: 0x18043EE60 Offset: 0x43DC60`
As we see three arguments in the function description, I open the dll itself through ida pro and look at the RVA address of the function:

but there are only two of them, we try to open pseudocode:

I don’t understand something, or the arguments functions really can be so modified?