sdk/lib/model/video.dart

//
// AUTO-GENERATED FILE, DO NOT MODIFY!
//
// @dart=2.18

// ignore_for_file: unused_element, unused_import
// ignore_for_file: always_put_required_named_parameters_first
// ignore_for_file: constant_identifier_names
// ignore_for_file: lines_longer_than_80_chars

part of hanzoai.cloud;

class Video {
  /// Returns a new [Video] instance.
  Video({
    this.audioUrl,
    this.class_,
    this.coverUrl,
    this.createdTime,
    this.dataUrl,
    this.dataUrls = const [],
    this.description,
    this.displayName,
    this.downloadUrl,
    this.editMode,
    this.excellentCount,
    this.grade,
    this.grade2,
    this.isPublic,
    this.keywords = const [],
    this.labelCount,
    this.labels = const [],
    this.lesson,
    this.name,
    this.owner,
    this.playAuth,
    this.remarks = const [],
    this.remarks2 = const [],
    this.reviewState,
    this.school,
    this.segmentCount,
    this.segments = const [],
    this.stage,
    this.state,
    this.subject,
    this.tag,
    this.tagOnPause,
    this.task1,
    this.task2,
    this.task3,
    this.template,
    this.topic,
    this.type,
    this.unit,
    this.videoId,
    this.videoLength,
    this.wordCountMap = const {},
  });
  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? audioUrl;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? class_;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? coverUrl;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? createdTime;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? dataUrl;

  List<String> dataUrls;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? description;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? displayName;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? downloadUrl;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? editMode;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  int? excellentCount;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? grade;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? grade2;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  bool? isPublic;

  List<String> keywords;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  int? labelCount;

  List<Label> labels;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? lesson;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? name;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? owner;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? playAuth;

  List<Remark> remarks;

  List<Remark> remarks2;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? reviewState;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? school;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  int? segmentCount;

  List<Label> segments;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? stage;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? state;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? subject;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? tag;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  bool? tagOnPause;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? task1;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? task2;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? task3;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? template;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? topic;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? type;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? unit;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? videoId;

  ///
  /// Please note: This property should have been non-nullable! Since the specification file
  /// does not include a default value (using the "default:" property), however, the generated
  /// source code must fall back to having a nullable type.
  /// Consider adding a "default:" property in the specification file to hide this note.
  ///
  String? videoLength;

  Map<String, int> wordCountMap;

  @override
  bool operator ==(Object other) => identical(this, other) || other is Video &&
    other.audioUrl == audioUrl &&
    other.class_ == class_ &&
    other.coverUrl == coverUrl &&
    other.createdTime == createdTime &&
    other.dataUrl == dataUrl &&
    _deepEquality.equals(other.dataUrls, dataUrls) &&
    other.description == description &&
    other.displayName == displayName &&
    other.downloadUrl == downloadUrl &&
    other.editMode == editMode &&
    other.excellentCount == excellentCount &&
    other.grade == grade &&
    other.grade2 == grade2 &&
    other.isPublic == isPublic &&
    _deepEquality.equals(other.keywords, keywords) &&
    other.labelCount == labelCount &&
    _deepEquality.equals(other.labels, labels) &&
    other.lesson == lesson &&
    other.name == name &&
    other.owner == owner &&
    other.playAuth == playAuth &&
    _deepEquality.equals(other.remarks, remarks) &&
    _deepEquality.equals(other.remarks2, remarks2) &&
    other.reviewState == reviewState &&
    other.school == school &&
    other.segmentCount == segmentCount &&
    _deepEquality.equals(other.segments, segments) &&
    other.stage == stage &&
    other.state == state &&
    other.subject == subject &&
    other.tag == tag &&
    other.tagOnPause == tagOnPause &&
    other.task1 == task1 &&
    other.task2 == task2 &&
    other.task3 == task3 &&
    other.template == template &&
    other.topic == topic &&
    other.type == type &&
    other.unit == unit &&
    other.videoId == videoId &&
    other.videoLength == videoLength &&
    _deepEquality.equals(other.wordCountMap, wordCountMap);

  @override
  int get hashCode =>
    // ignore: unnecessary_parenthesis
    (audioUrl == null ? 0 : audioUrl!.hashCode) +
    (class_ == null ? 0 : class_!.hashCode) +
    (coverUrl == null ? 0 : coverUrl!.hashCode) +
    (createdTime == null ? 0 : createdTime!.hashCode) +
    (dataUrl == null ? 0 : dataUrl!.hashCode) +
    (dataUrls.hashCode) +
    (description == null ? 0 : description!.hashCode) +
    (displayName == null ? 0 : displayName!.hashCode) +
    (downloadUrl == null ? 0 : downloadUrl!.hashCode) +
    (editMode == null ? 0 : editMode!.hashCode) +
    (excellentCount == null ? 0 : excellentCount!.hashCode) +
    (grade == null ? 0 : grade!.hashCode) +
    (grade2 == null ? 0 : grade2!.hashCode) +
    (isPublic == null ? 0 : isPublic!.hashCode) +
    (keywords.hashCode) +
    (labelCount == null ? 0 : labelCount!.hashCode) +
    (labels.hashCode) +
    (lesson == null ? 0 : lesson!.hashCode) +
    (name == null ? 0 : name!.hashCode) +
    (owner == null ? 0 : owner!.hashCode) +
    (playAuth == null ? 0 : playAuth!.hashCode) +
    (remarks.hashCode) +
    (remarks2.hashCode) +
    (reviewState == null ? 0 : reviewState!.hashCode) +
    (school == null ? 0 : school!.hashCode) +
    (segmentCount == null ? 0 : segmentCount!.hashCode) +
    (segments.hashCode) +
    (stage == null ? 0 : stage!.hashCode) +
    (state == null ? 0 : state!.hashCode) +
    (subject == null ? 0 : subject!.hashCode) +
    (tag == null ? 0 : tag!.hashCode) +
    (tagOnPause == null ? 0 : tagOnPause!.hashCode) +
    (task1 == null ? 0 : task1!.hashCode) +
    (task2 == null ? 0 : task2!.hashCode) +
    (task3 == null ? 0 : task3!.hashCode) +
    (template == null ? 0 : template!.hashCode) +
    (topic == null ? 0 : topic!.hashCode) +
    (type == null ? 0 : type!.hashCode) +
    (unit == null ? 0 : unit!.hashCode) +
    (videoId == null ? 0 : videoId!.hashCode) +
    (videoLength == null ? 0 : videoLength!.hashCode) +
    (wordCountMap.hashCode);

  @override
  String toString() => 'Video[audioUrl=$audioUrl, class_=$class_, coverUrl=$coverUrl, createdTime=$createdTime, dataUrl=$dataUrl, dataUrls=$dataUrls, description=$description, displayName=$displayName, downloadUrl=$downloadUrl, editMode=$editMode, excellentCount=$excellentCount, grade=$grade, grade2=$grade2, isPublic=$isPublic, keywords=$keywords, labelCount=$labelCount, labels=$labels, lesson=$lesson, name=$name, owner=$owner, playAuth=$playAuth, remarks=$remarks, remarks2=$remarks2, reviewState=$reviewState, school=$school, segmentCount=$segmentCount, segments=$segments, stage=$stage, state=$state, subject=$subject, tag=$tag, tagOnPause=$tagOnPause, task1=$task1, task2=$task2, task3=$task3, template=$template, topic=$topic, type=$type, unit=$unit, videoId=$videoId, videoLength=$videoLength, wordCountMap=$wordCountMap]';

  Map<String, dynamic> toJson() {
    final json = <String, dynamic>{};
    if (this.audioUrl != null) {
      json[r'audioUrl'] = this.audioUrl;
    } else {
      json[r'audioUrl'] = null;
    }
    if (this.class_ != null) {
      json[r'class'] = this.class_;
    } else {
      json[r'class'] = null;
    }
    if (this.coverUrl != null) {
      json[r'coverUrl'] = this.coverUrl;
    } else {
      json[r'coverUrl'] = null;
    }
    if (this.createdTime != null) {
      json[r'createdTime'] = this.createdTime;
    } else {
      json[r'createdTime'] = null;
    }
    if (this.dataUrl != null) {
      json[r'dataUrl'] = this.dataUrl;
    } else {
      json[r'dataUrl'] = null;
    }
      json[r'dataUrls'] = this.dataUrls;
    if (this.description != null) {
      json[r'description'] = this.description;
    } else {
      json[r'description'] = null;
    }
    if (this.displayName != null) {
      json[r'displayName'] = this.displayName;
    } else {
      json[r'displayName'] = null;
    }
    if (this.downloadUrl != null) {
      json[r'downloadUrl'] = this.downloadUrl;
    } else {
      json[r'downloadUrl'] = null;
    }
    if (this.editMode != null) {
      json[r'editMode'] = this.editMode;
    } else {
      json[r'editMode'] = null;
    }
    if (this.excellentCount != null) {
      json[r'excellentCount'] = this.excellentCount;
    } else {
      json[r'excellentCount'] = null;
    }
    if (this.grade != null) {
      json[r'grade'] = this.grade;
    } else {
      json[r'grade'] = null;
    }
    if (this.grade2 != null) {
      json[r'grade2'] = this.grade2;
    } else {
      json[r'grade2'] = null;
    }
    if (this.isPublic != null) {
      json[r'isPublic'] = this.isPublic;
    } else {
      json[r'isPublic'] = null;
    }
      json[r'keywords'] = this.keywords;
    if (this.labelCount != null) {
      json[r'labelCount'] = this.labelCount;
    } else {
      json[r'labelCount'] = null;
    }
      json[r'labels'] = this.labels;
    if (this.lesson != null) {
      json[r'lesson'] = this.lesson;
    } else {
      json[r'lesson'] = null;
    }
    if (this.name != null) {
      json[r'name'] = this.name;
    } else {
      json[r'name'] = null;
    }
    if (this.owner != null) {
      json[r'owner'] = this.owner;
    } else {
      json[r'owner'] = null;
    }
    if (this.playAuth != null) {
      json[r'playAuth'] = this.playAuth;
    } else {
      json[r'playAuth'] = null;
    }
      json[r'remarks'] = this.remarks;
      json[r'remarks2'] = this.remarks2;
    if (this.reviewState != null) {
      json[r'reviewState'] = this.reviewState;
    } else {
      json[r'reviewState'] = null;
    }
    if (this.school != null) {
      json[r'school'] = this.school;
    } else {
      json[r'school'] = null;
    }
    if (this.segmentCount != null) {
      json[r'segmentCount'] = this.segmentCount;
    } else {
      json[r'segmentCount'] = null;
    }
      json[r'segments'] = this.segments;
    if (this.stage != null) {
      json[r'stage'] = this.stage;
    } else {
      json[r'stage'] = null;
    }
    if (this.state != null) {
      json[r'state'] = this.state;
    } else {
      json[r'state'] = null;
    }
    if (this.subject != null) {
      json[r'subject'] = this.subject;
    } else {
      json[r'subject'] = null;
    }
    if (this.tag != null) {
      json[r'tag'] = this.tag;
    } else {
      json[r'tag'] = null;
    }
    if (this.tagOnPause != null) {
      json[r'tagOnPause'] = this.tagOnPause;
    } else {
      json[r'tagOnPause'] = null;
    }
    if (this.task1 != null) {
      json[r'task1'] = this.task1;
    } else {
      json[r'task1'] = null;
    }
    if (this.task2 != null) {
      json[r'task2'] = this.task2;
    } else {
      json[r'task2'] = null;
    }
    if (this.task3 != null) {
      json[r'task3'] = this.task3;
    } else {
      json[r'task3'] = null;
    }
    if (this.template != null) {
      json[r'template'] = this.template;
    } else {
      json[r'template'] = null;
    }
    if (this.topic != null) {
      json[r'topic'] = this.topic;
    } else {
      json[r'topic'] = null;
    }
    if (this.type != null) {
      json[r'type'] = this.type;
    } else {
      json[r'type'] = null;
    }
    if (this.unit != null) {
      json[r'unit'] = this.unit;
    } else {
      json[r'unit'] = null;
    }
    if (this.videoId != null) {
      json[r'videoId'] = this.videoId;
    } else {
      json[r'videoId'] = null;
    }
    if (this.videoLength != null) {
      json[r'videoLength'] = this.videoLength;
    } else {
      json[r'videoLength'] = null;
    }
      json[r'wordCountMap'] = this.wordCountMap;
    return json;
  }

  /// Returns a new [Video] instance and imports its values from
  /// [value] if it's a [Map], null otherwise.
  // ignore: prefer_constructors_over_static_methods
  static Video? fromJson(dynamic value) {
    if (value is Map) {
      final json = value.cast<String, dynamic>();

      // Ensure that the map contains the required keys.
      // Note 1: the values aren't checked for validity beyond being non-null.
      // Note 2: this code is stripped in release mode!
      assert(() {
        requiredKeys.forEach((key) {
          assert(json.containsKey(key), 'Required key "Video[$key]" is missing from JSON.');
          assert(json[key] != null, 'Required key "Video[$key]" has a null value in JSON.');
        });
        return true;
      }());

      return Video(
        audioUrl: mapValueOfType<String>(json, r'audioUrl'),
        class_: mapValueOfType<String>(json, r'class'),
        coverUrl: mapValueOfType<String>(json, r'coverUrl'),
        createdTime: mapValueOfType<String>(json, r'createdTime'),
        dataUrl: mapValueOfType<String>(json, r'dataUrl'),
        dataUrls: json[r'dataUrls'] is Iterable
            ? (json[r'dataUrls'] as Iterable).cast<String>().toList(growable: false)
            : const [],
        description: mapValueOfType<String>(json, r'description'),
        displayName: mapValueOfType<String>(json, r'displayName'),
        downloadUrl: mapValueOfType<String>(json, r'downloadUrl'),
        editMode: mapValueOfType<String>(json, r'editMode'),
        excellentCount: mapValueOfType<int>(json, r'excellentCount'),
        grade: mapValueOfType<String>(json, r'grade'),
        grade2: mapValueOfType<String>(json, r'grade2'),
        isPublic: mapValueOfType<bool>(json, r'isPublic'),
        keywords: json[r'keywords'] is Iterable
            ? (json[r'keywords'] as Iterable).cast<String>().toList(growable: false)
            : const [],
        labelCount: mapValueOfType<int>(json, r'labelCount'),
        labels: Label.listFromJson(json[r'labels']),
        lesson: mapValueOfType<String>(json, r'lesson'),
        name: mapValueOfType<String>(json, r'name'),
        owner: mapValueOfType<String>(json, r'owner'),
        playAuth: mapValueOfType<String>(json, r'playAuth'),
        remarks: Remark.listFromJson(json[r'remarks']),
        remarks2: Remark.listFromJson(json[r'remarks2']),
        reviewState: mapValueOfType<String>(json, r'reviewState'),
        school: mapValueOfType<String>(json, r'school'),
        segmentCount: mapValueOfType<int>(json, r'segmentCount'),
        segments: Label.listFromJson(json[r'segments']),
        stage: mapValueOfType<String>(json, r'stage'),
        state: mapValueOfType<String>(json, r'state'),
        subject: mapValueOfType<String>(json, r'subject'),
        tag: mapValueOfType<String>(json, r'tag'),
        tagOnPause: mapValueOfType<bool>(json, r'tagOnPause'),
        task1: mapValueOfType<String>(json, r'task1'),
        task2: mapValueOfType<String>(json, r'task2'),
        task3: mapValueOfType<String>(json, r'task3'),
        template: mapValueOfType<String>(json, r'template'),
        topic: mapValueOfType<String>(json, r'topic'),
        type: mapValueOfType<String>(json, r'type'),
        unit: mapValueOfType<String>(json, r'unit'),
        videoId: mapValueOfType<String>(json, r'videoId'),
        videoLength: mapValueOfType<String>(json, r'videoLength'),
        wordCountMap: mapCastOfType<String, int>(json, r'wordCountMap') ?? const {},
      );
    }
    return null;
  }

  static List<Video> listFromJson(dynamic json, {bool growable = false,}) {
    final result = <Video>[];
    if (json is List && json.isNotEmpty) {
      for (final row in json) {
        final value = Video.fromJson(row);
        if (value != null) {
          result.add(value);
        }
      }
    }
    return result.toList(growable: growable);
  }

  static Map<String, Video> mapFromJson(dynamic json) {
    final map = <String, Video>{};
    if (json is Map && json.isNotEmpty) {
      json = json.cast<String, dynamic>(); // ignore: parameter_assignments
      for (final entry in json.entries) {
        final value = Video.fromJson(entry.value);
        if (value != null) {
          map[entry.key] = value;
        }
      }
    }
    return map;
  }

  // maps a json object with a list of Video-objects as value to a dart map
  static Map<String, List<Video>> mapListFromJson(dynamic json, {bool growable = false,}) {
    final map = <String, List<Video>>{};
    if (json is Map && json.isNotEmpty) {
      // ignore: parameter_assignments
      json = json.cast<String, dynamic>();
      for (final entry in json.entries) {
        map[entry.key] = Video.listFromJson(entry.value, growable: growable,);
      }
    }
    return map;
  }

  /// The list of required keys that must be present in a JSON.
  static const requiredKeys = <String>{
  };
}