Why do you assign all arguments to a single argument in the method invocation?

[NSExceptional]

MRYIPC/MRYIPCCenter.m

Lines 35 to 43 in 77ea5ed

	-(id)invokeWithArguments:(id)args
	{
	//call method:
	NSMethodSignature* signature = [_target methodSignatureForSelector:_selector];
	NSInvocation* invocation = [NSInvocation invocationWithMethodSignature:signature];
	invocation.target = _target;
	invocation.selector = _selector;
	if (signature.numberOfArguments > 2)
	[invocation setArgument:&args atIndex:2];