Conversation.fromJson constructor
Implementation
factory Conversation.fromJson(Map<String, dynamic> json) => Conversation(
nick: json['nick'] as String,
log: MessageLog.fromJson(json['log'] as Map<String, dynamic>),
unread: json['unread'] as int,
read_marker: json['read_marker'] == null ? null : json['read_marker'] as String,
typing: (json['typing'] as List).map((e) => e as CaseFolded).toList(),
);