Exception while using annotation hashid

When I use hash annotations to modify the dataclass field, I throw an exception: TypeError: Strings must be encoded before hashing
My dataclass is:
@dataclass
class PersonHashid(idl.IdlStruct, typename="PersonHashid"):
name: str
annotate.member_hash_id("name", "123")
age: types.int32
address: str

An exception occurred when I used the following code to initialize the topic ：
participant = DomainParticipant(0)
topic = Topic(participant,"HelloWorldTopic", PersonHashid)

Abnormal information:
mid = unpack("<I", md5(f_annot.get("hash_id", "") or name.encode()).digest()[:4])[0] & 0x0FFFFFFF
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: Strings must be encoded before hashing

After tracking the code, it was found that the problem occurred in the file cyclonedds/idl/_main. py: mid=unpack ("<I", md5 (f-annot. get ("hash_id", "") or name. encode()). digest() [: 4]) [0]&0x0FFFFFFF

Is the correct code supposed to be: mid=unpack ("<I", md5 ((f-annot. get ("hash_id", "") or name). encode()). digest() [: 4]) [0]&0x0FFFFFFF ？

Start in cyclonedds/idl/_main.py at the md5 expression shown in the report, then reproduce the failure by defining PersonHashid with annotate.member_hash_id and initializing its Topic. Check the hash-id handling for the string annotation and verify that Topic initialization completes without the TypeError.