ladder script help

[HoyChampoy]

I know that already, its just i don't know how to use it or how it works. the code looks like this
SetEntityConnectionStateChangeCallback(string& asName, string& asCallback);

For the string asName do I put the name of the ladder or the name of the valve? and lets say for the asCallback, if i named it activateladderarea, would i put SetEntityActive in there? like this:

SetEntityConnectionStateChangeCallback(string &in asName, string &in asCallback);

void activateladderarea(string &in asEntity, int alState)
{
SetEntityActive("LadderArea_1", true);
}