copyWith method
Implementation
@override
ChatEventStickerSetChanged copyWith({
int? oldStickerSetId,
int? newStickerSetId,
}) => ChatEventStickerSetChanged(
oldStickerSetId: oldStickerSetId ?? this.oldStickerSetId,
newStickerSetId: newStickerSetId ?? this.newStickerSetId,
);