public Builder addAllCustomAttributes(
                java.lang.Iterable<? extends im.turms.server.common.access.client.dto.model.common.Value> values) {
            if (customAttributesBuilder_ == null) {
                ensureCustomAttributesIsMutable();
                com.google.protobuf.AbstractMessageLite.Builder.addAll(values, customAttributes_);
                onChanged();
            } else {
                customAttributesBuilder_.addAllMessages(values);
            }
            return this;
        }
<code>repeated .im.turms.proto.Value custom_attributes = 15;</code>
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/request/group/enrollment/UpdateGroupJoinQuestionRequest.java