Solved how to hook fields void

I'm still confused about how to hook like this:

RVA: 0x2898CD0 Offset: 0x2898CD0 VA: 0xC625BCD0
public void SendSelectSkin(uint skinid, uint heroid) { }

// RVA: 0x28D250C Offset: 0x28D250C VA: 0xC629550C
private void ShowSkinExpiryDate() { }

And like this:

// RVA: 0x2CDEB64 Offset: 0x2CDEB64 VA: 0xC66A1B64
public static void AddPlayerInfo(BattlePlayerInfo playerinfo, out SystemData.RoomData roomdata) { }

Help me master thanks before