replyListFromMap function Null safety

List<NIMMessage>? replyListFromMap(
  1. Map? replyListMap
)

Implementation

List<NIMMessage>? replyListFromMap(Map? replyListMap) => replyListMap == null
    ? null
    : (replyListMap['replyList'] as List<dynamic>?)
        ?.map((e) => NIMMessage.fromMap(Map<String, dynamic>.from(e)))
        .toList();