redux of the worker queue

src/lib.rs

@@ -11,7 +11,7 @@ pub mod matcher;
 pub mod tagger;
 
 pub use error::{TagError, TagResult};
-pub use tagger::{TagConfig, TagStats, run_tagging};
+pub use tagger::{TagConfig, TagStats, run_tagging, tag_track};
 
 // Re-export from shanty-data for backward compatibility.
 pub use shanty_data::MetadataFetcher as MetadataProvider;