using var reader = new M2dReader(EXPORTED_PATH);
var index = new FlatTypeIndex(reader);
var parser = new XBlockParser(reader, index);
parser.Include(typeof(ISpawnPoint));
parser.Include(typeof(IMS2TriggerObject));
parser.Include(typeof(IPortal));
...

var results = new Dictionary<string, MapEntityMetadata>();
parser.Parse((xblock, entities) => {
    var metadata = new MapEntityMetadata();
    foreach (IMapEntity entity in entities) {
        switch (entity) {
            case ISpawnPointPC spawnPoint:
                ...
            case ISpawnPointNPC npcSpawnPoint:
                ...
            default:
                ...
        }
    }
    results[xblock] = metadata;
});

using var reader = new M2dReader(EXPORTED_PATH);
var index = new FlatTypeIndex(reader);
var parser = new XBlockParser(reader, index);

var results = new Dictionary<string, MapEntityMetadata>();
parser.Parallel().ForAll(map => {
    var metadata = new MapEntityMetadata();
    foreach (IMapEntity entity in map.entities) {
        switch (entity) {
            case ISpawnPointPC spawnPoint:
                ...
            case ISpawnPointNPC npcSpawnPoint:
                ...
            default:
                ...
        }
    }
    results[map.xblock] = metadata;
});

using var reader = new M2dReader(XML_PATH);

// LOCALE: "TW", "TH", "NA", "CN", "JP", "KR"
// ENV:    "Dev", "Qa", "DevStage", "Stage", "Live"
Filter.Load(reader, LOCALE, ENV);
var parser = new ItemParser(reader);

foreach ((int id, string name, ItemData data) in parser.Parse()) {
    // Extract fields from ItemData that are needed.
}

using var reader = new M2dReader(EXPORTED_PATH);
var index = new FlatTypeIndex(reader);
index.CliExplorer();