Scripting used to make a checkpoint?

[FreshKorruption]

I know that it is like this, but what do i fill them in with. Can i get an example?
void CheckPoint (string& asName, string& asStartPos, string& asCallback, string& asDeathHintCat, string& asDeathHintEntry);

**This should be in the Support section**

CheckPoint("", "SPAWNAREANAME", "", "", "");

Lol It can be that naked. To fill in:

CheckPoint("Checkpointname", "SPAWNAREANAME", "", "DeathHintCategory", "DeathHintEntry");

What i'm confused about is how there is the usual void onstart and you put stuff in there (like a nickname and stuff) and than you have void (nickname). What do you put in each individual one? Hope you understood that.