public Builder mergeUpdateRelationshipGroupRequest(
                im.turms.client.model.proto.request.user.relationship.UpdateRelationshipGroupRequest value) {
            copyOnWrite();
            instance.mergeUpdateRelationshipGroupRequest(value);
            return this;
        }
<code>.im.turms.proto.UpdateRelationshipGroupRequest update_relationship_group_request = 211;</code>
turms-client-kotlin/src/main/java/im/turms/client/model/proto/request/TurmsRequest.java