private void addAllCustomAttributes(
            java.lang.Iterable<? extends im.turms.client.model.proto.model.common.Value> values) {
        ensureCustomAttributesIsMutable();
        com.google.protobuf.AbstractMessageLite.addAll(values, customAttributes_);
    }
<code>repeated .im.turms.proto.Value custom_attributes = 15;</code>
turms-client-kotlin/src/main/java/im/turms/client/model/proto/request/group/enrollment/CreateGroupJoinRequestRequest.java