////  EntityItemID.h//  libraries/shared/src////  Created by Brad Hefta-Gaub on 12/4/13.//  Copyright 2013 High Fidelity, Inc.//  Copyright 2023 Overte e.V.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html//  SPDX-License-Identifier: Apache-2.0// #ifndef hifi_EntityItemID_h#define hifi_EntityItemID_h #include <stdint.h> #include <QDebug>#include <QObject>#include <QHash>#include <QtCore/QSharedPointer>#include <QUuid> const QUuid UNKNOWN_ENTITY_ID;  // null uuid /// Abstract ID for editing model items. Used in EntityItem JS API.class EntityItemID : public QUuid {public:    EntityItemID();    EntityItemID(const QUuid& id);    // EntityItemID(const EntityItemID& other);    static EntityItemID readEntityItemIDFromBuffer(const unsigned char* data, int bytesLeftToRead);     bool isInvalidID() const { return *this == UNKNOWN_ENTITY_ID; }}; inline QDebug operator<<(QDebug debug, const EntityItemID& id) {    debug << "[entity-id:" << id.toString() << "]";    return debug;} Q_DECLARE_METATYPE(EntityItemID);Q_DECLARE_METATYPE(QVector<EntityItemID>); // Allow the use of std::unordered_map with QUuid keystemplate <>struct std::hash<EntityItemID> {    size_t operator()(const EntityItemID& id) const { return qHash(id); }}; #endif  // hifi_EntityItemID_h