SV_GetIDString for rehlds?

[dev1337]

I want to hook when a player get steamid from the server with orpheu. I have something like that but the function can't be found.

#include <amxmodx>
#include <orpheu>


public plugin_precache()
{
    OrpheuRegisterHook(OrpheuGetFunction("SV_GetIDString_internal"),"OnSV_GetIDString",OrpheuHookPost)
}

public OnSV_GetIDString(steamid[])
{
    server_print("%s", steamid);
}

The function looks like that

{
    "name" : "SV_GetIDString",
    "library" : "engine",
    "arguments" :
    [
        {
            "type" : "pointer"
        }
    ],
    "return" :
    {
        "type" : "char *"
    },
    "identifiers":
    [
        {
            "os" : "windows",
            "value" : [0x55,0x8B,0xEC,0x83,0xEC,0x30,0x8B,0x4D,0x08,0xC6,"*","*","*","*","*","*",0x85 ,0xC9,0x0F,"*","*","*","*","*",0x8B,0x01,0x48,0x0F]
        },
        {
            "os" : "linux",
            "value" : "SV_GetIDString_internal"
        }
    ]
}

I tried with SV_GetIDString and _Z23SV_GetIDString_internalP8USERID_s but doesn't work.
I read that the reapi has something to hook that function, but i search for it everywhere but no results