### Question:
WindowStreamApi extends BaseStreamApi implements NeovimWindowApi { @Override public String toString() { return "WindowStreamApi{" + "model=" + model + '}'; } WindowStreamApi(ReactiveRpcStreamer reactiveRpcStreamer, Window model); @Override Window get(); @Override CompletableFuture<NeovimBufferApi> getBuffer(); @Override CompletableFuture<Void> setBuffer(Buffer buffer); @Override CompletableFuture<VimCoords> getCursor(); @Override CompletableFuture<Void> setCursor(VimCoords vimCoords); @Override CompletableFuture<Integer> getHeight(); @Override CompletableFuture<Void> setHeight(int height); @Override CompletableFuture<Integer> getWidth(); @Override CompletableFuture<Void> setWidth(int width); @Override CompletableFuture<Object> getVar(String name); @Override CompletableFuture<Void> setVar(String name, Object value); @Override CompletableFuture<Void> deleteVar(String name); @Override CompletableFuture<Object> getOption(String name); @Override CompletableFuture<Void> setOption(String name, Object value); @Override CompletableFuture<Map<String, Object>> getConfig(); @Override CompletableFuture<Void> setConfig(Map<String, Object> config); @Override CompletableFuture<NeovimTabpageApi> getTabpage(); @Override CompletableFuture<Integer> getNumber(); @Override CompletableFuture<Boolean> isValid(); @Override CompletableFuture<Void> close(boolean force); @Override String toString();  }### Answer:
@Test public void toStringDoesntCrash() { windowStreamApi.toString(); }