Topic.fromJson constructor
      
      Topic.fromJson(
    
    
- Map json_
Implementation
Topic.fromJson(core.Map json_)
    : this(
        courseId: json_['courseId'] as core.String?,
        name: json_['name'] as core.String?,
        topicId: json_['topicId'] as core.String?,
        updateTime: json_['updateTime'] as core.String?,
      );