When iterating directly over a dictionary e.g., for k, v in some_dict: or {k: v for k, v in some_dict}, Python iterates
over the dictionary’s keys by default. If the intention is to access both the key and the value, omitting .items() leads to unexpected
behavior. In such cases, the k variable would receive the key, and the v variable would attempt to unpack the key itself,
which can lead to errors or subtle bugs if the key is iterable, like a string. For example, if a key is a string like
"hi", k would be 'h' and v would be 'i'.
