private MapField<String, String> internalGetDetails() {
        if (details_ == null) {
            return MapField.emptyMapField(DetailsDefaultEntryHolder.defaultEntry);
        }
        return details_;
    }
<code>optional int64 timestamp = 3;</code>

@return The timestamp.
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/model/user/UserLocation.java