private void ensureUserIdsForCommonRelationshipsIsMutable() {
            if (!userIdsForCommonRelationships_.isModifiable()) {
                userIdsForCommonRelationships_ = makeMutableCopy(userIdsForCommonRelationships_);
            }
            bitField0_ |= 0x00000010;
        }
<code>optional int64 last_updated_date = 4;</code>

@return This builder for chaining.
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/request/user/relationship/QueryRelationshipsRequest.java