@java.lang.Override
    public int hashCode() {
        if (memoizedHashCode != 0) {
            return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        if (getGroupJoinQuestionsCount() > 0) {
            hash = (37 * hash) + GROUP_JOIN_QUESTIONS_FIELD_NUMBER;
            hash = (53 * hash) + getGroupJoinQuestionsList().hashCode();
        }
        if (hasLastUpdatedDate()) {
            hash = (37 * hash) + LAST_UPDATED_DATE_FIELD_NUMBER;
            hash = (53 * hash) + com.google.protobuf.Internal.hashLong(getLastUpdatedDate());
        }
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
    }
<code>optional int64 last_updated_date = 2;</code>

@return The lastUpdatedDate.
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/model/group/GroupJoinQuestionsWithVersion.java