This is the recommended method of installing this package as it ensures you only receive stable versions, and you can be sure pub.dev is reliable. It also keeps the size of your pubspec.yaml small.
Just import the package as you would normally, from the command line:
flutter pub add flutter_map
If you urgently need the latest version, a specific branch, or a specific fork, you can use this method.
# ref: main
After installing the package, import it into the necessary files in your project:
import 'package:flutter_map/flutter_map.dart'; // Suitable for most situations
import 'package:flutter_map/plugin_api.dart'; // Only import if required functionality is not exposed by default