Help/Support I can't figure out how to call a function from another class? Or call a function in general

[niro 1.2k 9 9.1.0]

okay, I've posted something similar to this before and I need a descriptive answer that I would understand, things like [DoSomething SomethineElse] etc confuse me, so what I'm trying to do is call methods/functions from other classes, so let's say I send a message with the string "!info" that info would call a method from a different class and display the data into the message kind of like a command, so I have an example

 

@interface KikUser : NSObject
- (NSString *)groupMembersString;
@end


%hook CoreDataConversationManager

- (void) sendTextMessage:(id)command withRenderInstructionSet:(id)arg2 toConversation:(id)arg2 isSuggestedResponse:(BOOL)arg3

{
if [(command isEqualToString:@"!type")] command = groupMembersString;
return %orig;
}

%end

As you can see I'm trying to call the string from the header KikUser, and the method to send a message within Kik is on a DIFFERENT Header, and I'm trying to return the data from the groupMembersString upon typing and clicking enter with !info typed, now I have a lot more questions that I can't really phrase and it would be better to show you "live" (me screen recording) so if anyone could help me out that would be fantastic, my Kik is @a3t and my Skype is @notniro someone please help!