public im.turms.server.common.access.client.dto.model.group.GroupJoinQuestion.Builder getQuestionsBuilder(
                int index) {
            return getQuestionsFieldBuilder().getBuilder(index);
        }
<code>repeated .im.turms.proto.GroupJoinQuestion questions = 2;</code>
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/request/group/enrollment/CreateGroupJoinQuestionsRequest.java