private void setNewGroupIndex(int value) {
        bitField0_ |= 0x00000002;
        newGroupIndex_ = value;
    }
<code>optional int32 new_group_index = 3;</code>

@param value The newGroupIndex to set.
turms-client-kotlin/src/main/java/im/turms/client/model/proto/request/user/relationship/UpdateRelationshipRequest.java