messageThreadOption property Null safety

NIMMessageThreadOption? messageThreadOption
@JsonKey(fromJson: NIMMessageThreadOption._fromMap, toJson: NIMMessageThreadOption._toMap), read / write

Thread information about a message.

Implementation

@JsonKey(
    fromJson: NIMMessageThreadOption._fromMap,
    toJson: NIMMessageThreadOption._toMap)
NIMMessageThreadOption? messageThreadOption;