The iterator type in this range-based for is "int" in my custom linked list

Question

I'm trying to iterate over my linked list, but VSC keeps complaining that my range-based for isn't suitable for this. It says

"the iterator type in this range-based 'for' statement is "int", which is not a pointer type or an iterator-like class type"

LinkedList<int> list;
/*
insert operations
*/

for(int i: list){
    cout << i << endl;
}

I also declared the begin and end functions in the .hpp:

T begin(){
    return head->data;
}

T end(){
    return tail->data;
}

I know it isn't supposed to work properly, but at least I expect to get a return for the first element. I'm not familiar with C++, I just want to create a range-based for like this:

for(T type: list){}