code: public void bind() {
          FilterSpec fitlerSpec = new FilterSpec(
                  filterProvider,
                  priority,
                  name.or(filterClass.getSimpleName()),
                  buildPatterns());
  
          Multibinder
                  .newSetBinder(binder, FilterSpec.class, Graceland.class)
                  .addBinding()
                  .toInstance(fitlerSpec);
      }
docs: Builds a {@link io.graceland.filter.FilterSpec} and adds it to the Guice dependency graph.