added null safety for llc

packages/stream_chat/lib/src/models/event.dart

@@ -31,68 +31,68 @@ class Event {
   }) : isLocal = true;
 
   /// Create a new instance from a json
-  factory Event.fromJson(Map<String, dynamic> json) =>
+  factory Event.fromJson(Map<String, dynamic>? json) =>
       _$EventFromJson(Serialization.moveToExtraDataFromRoot(
         json,
         topLevelFields,
-      ))
+      )!)
         ..isLocal = false;
 
   /// The type of the event
   /// [EventType] contains some predefined constant types
-  final String type;
+  final String? type;
 
   /// The channel cid to which the event belongs
-  final String cid;
+  final String? cid;
 
   /// The channel id to which the event belongs
-  final String channelId;
+  final String? channelId;
 
   /// The channel type to which the event belongs
-  final String channelType;
+  final String? channelType;
 
   /// The connection id in which the event has been sent
-  final String connectionId;
+  final String? connectionId;
 
   /// The date of creation of the event
-  final DateTime createdAt;
+  final DateTime? createdAt;
 
   /// User object of the health check user
-  final OwnUser me;
+  final OwnUser? me;
 
   /// User object of the current user
-  final User user;
+  final User? user;
 
   /// The message sent with the event
-  final Message message;
+  final Message? message;
 
   /// The channel sent with the event
-  final EventChannel channel;
+  final EventChannel? channel;
 
   /// The member sent with the event
-  final Member member;
+  final Member? member;
 
   /// The reaction sent with the event
-  final Reaction reaction;
+  final Reaction? reaction;
 
   /// The number of unread messages for current user
-  final int totalUnreadCount;
+  final int? totalUnreadCount;
 
   /// User total unread channels
-  final int unreadChannels;
+  final int? unreadChannels;
 
   /// Online status
-  final bool online;
+  final bool? online;
 
   /// The id of the parent message of a thread
-  final String parentId;
+  final String? parentId;
 
   /// True if the event is generated by this client
-  bool isLocal;
+  bool? isLocal;
 
   /// Map of custom channel extraData
   @JsonKey(includeIfNull: false)
-  final Map<String, dynamic> extraData;
+  final Map<String, dynamic>? extraData;
 
   /// Known top level fields.
   /// Useful for [Serialization] methods.
@@ -124,23 +124,23 @@ class Event {
 
   /// Creates a copy of [Event] with specified attributes overridden.
   Event copyWith({
-    String type,
-    String cid,
-    String channelId,
-    String channelType,
-    String connectionId,
-    DateTime createdAt,
-    OwnUser me,
-    User user,
-    Message message,
-    EventChannel channel,
-    Member member,
-    Reaction reaction,
-    int totalUnreadCount,
-    int unreadChannels,
-    bool online,
-    String parentId,
-    Map<String, dynamic> extraData,
+    String? type,
+    String? cid,
+    String? channelId,
+    String? channelType,
+    String? connectionId,
+    DateTime? createdAt,
+    OwnUser? me,
+    User? user,
+    Message? message,
+    EventChannel? channel,
+    Member? member,
+    Reaction? reaction,
+    int? totalUnreadCount,
+    int? unreadChannels,
+    bool? online,
+    String? parentId,
+    Map<String, dynamic>? extraData,
   }) =>
       Event(
         type: type ?? this.type,
@@ -169,18 +169,18 @@ class EventChannel extends ChannelModel {
   /// Constructor used for json serialization
   EventChannel({
     this.members,
-    String id,
-    String type,
-    String cid,
-    ChannelConfig config,
-    User createdBy,
-    bool frozen,
-    DateTime lastMessageAt,
-    DateTime createdAt,
-    DateTime updatedAt,
-    DateTime deletedAt,
-    int memberCount,
-    Map<String, dynamic> extraData,
+    String? id,
+    String? type,
+    String? cid,
+    ChannelConfig? config,
+    User? createdBy,
+    bool? frozen,
+    DateTime? lastMessageAt,
+    DateTime? createdAt,
+    DateTime? updatedAt,
+    DateTime? deletedAt,
+    int? memberCount,
+    Map<String, dynamic>? extraData,
   }) : super(
           id: id,
           type: type,
@@ -197,14 +197,14 @@ class EventChannel extends ChannelModel {
         );
 
   /// Create a new instance from a json
-  factory EventChannel.fromJson(Map<String, dynamic> json) =>
+  factory EventChannel.fromJson(Map<String, dynamic>? json) =>
       _$EventChannelFromJson(Serialization.moveToExtraDataFromRoot(
         json,
         topLevelFields,
-      ));
+      )!);
 
   /// A paginated list of channel members
-  final List<Member> members;
+  final List<Member>? members;
 
   /// Known top level fields.
   /// Useful for [Serialization] methods.