chore: docs

examples/grouping.py

@@ -4,12 +4,12 @@
 
 filename = pathlib.Path(__file__).parent.joinpath('sample.ais')
 
+# To track NMEA 4.10 tag block groups a queue is required.
+# This queue buffers NMEA sentences belonging until the group is complete.
+# NOTE: get_nowait will return NMEA sentences - NOT AIS sentences!
+tbq = TagBlockQueue()
 
-with FileReaderStream(str(filename), tbq=TagBlockQueue()) as stream:
-    tbq = stream.tbq
-
+with FileReaderStream(str(filename), tbq=tbq) as stream:
     for msg in stream:
-        try:
+        while not tbq.empty():
             print(tbq.get_nowait())
-        except queue.Empty:
-            pass