MKLocalSearch for cities not returning location identities

Hi fellow developers,

I'm encountering an issue when using MKLocalSearch to search for cities. Here's my setup:

1. I'm using MKLocalSearch with an MKLocalSearch.Request object.
2. I've set the resultTypes to .address to focus on address results.

The problem: When I receive the search response, it includes the locations as expected. However, these locations don't have an identity or alternative identities.

Questions:

1. Is this the expected behavior when searching for cities?
2. Without an identity, how can I uniquely identify and store these city results in my database?
3. Would it be appropriate to store the city name, country, and coordinates instead?

Thanks in advance!