public Builder addUserRelationshipGroups(
                int index,
                im.turms.client.model.proto.model.user.UserRelationshipGroup value) {
            copyOnWrite();
            instance.addUserRelationshipGroups(index, value);
            return this;
        }
<code>repeated .im.turms.proto.UserRelationshipGroup user_relationship_groups = 1;</code>
turms-client-kotlin/src/main/java/im/turms/client/model/proto/model/user/UserRelationshipGroupsWithVersion.java