[2021/06/30 01:49:49.222] **********************************************************************
 [2021/06/30 01:49:49.222] File "api/bson/raw_bson.rst", line ?, in default
 [2021/06/30 01:49:49.222] Failed example:
 [2021/06/30 01:49:49.222]     for doc in db.test.find():
 [2021/06/30 01:49:49.222]        print(f"raw document: {doc.raw}")
 [2021/06/30 01:49:49.222]        print(f"decoded document: {bson.decode(doc.raw)}")
 [2021/06/30 01:49:49.222]        result = replica_db.test.insert_one(doc)
 [2021/06/30 01:49:49.222] Exception raised:
 [2021/06/30 01:49:49.222]     Traceback (most recent call last):
 [2021/06/30 01:49:49.222]       File "/opt/python/2.7/lib/python2.7/doctest.py", line 1315, in __run
 [2021/06/30 01:49:49.222]         compileflags, 1) in test.globs
 [2021/06/30 01:49:49.222]       File "/opt/python/2.7/lib/python2.7/site-packages/sphinx/ext/doctest.py", line 503, in compile
 [2021/06/30 01:49:49.222]         return compile(code, name, self.type, flags, dont_inherit)
 [2021/06/30 01:49:49.222]       File "<doctest default[7]>", line 2
 [2021/06/30 01:49:49.222]         print(f"raw document: {doc.raw}")
 [2021/06/30 01:49:49.222]                                        ^
 [2021/06/30 01:49:49.222]     SyntaxError: invalid syntax
 [2021/06/30 01:49:49.228] **********************************************************************