allow sending emoji/stickers from emote packs

lib/models/requests/get_specific_room_state.dart

@@ -0,0 +1,29 @@
+import "package:fast_immutable_collections/fast_immutable_collections.dart";
+import "package:freezed_annotation/freezed_annotation.dart";
+
+part "get_specific_room_state.freezed.dart";
+part "get_specific_room_state.g.dart";
+
+@Freezed(toJson: false, fromJson: false)
+@JsonSerializable()
+class const GetSpecificRoomStateRequest({
+  required final IList<RoomStateKey> keys,
+}) with _$GetSpecificRoomStateRequest {
+  Map<String, Object?> toJson() => _$GetSpecificRoomStateRequestToJson(this);
+
+  factory GetSpecificRoomStateRequest.fromJson(Map<String, Object?> json) =>
+      _$GetSpecificRoomStateRequestFromJson(json);
+}
+
+@Freezed(toJson: false, fromJson: false)
+@JsonSerializable()
+class const RoomStateKey({
+  required final String roomId,
+  required final String type,
+  required final String stateKey,
+}) with _$RoomStateKey {
+  Map<String, Object?> toJson() => _$RoomStateKeyToJson(this);
+
+  factory RoomStateKey.fromJson(Map<String, Object?> json) =>
+      _$RoomStateKeyFromJson(json);
+}