TimeWindow.fromJson constructor
      
      TimeWindow.fromJson(
    
    
- Map json_
 
Implementation
TimeWindow.fromJson(core.Map json_)
    : this(
        endTime: json_.containsKey('endTime')
            ? json_['endTime'] as core.String
            : null,
        startTime: json_.containsKey('startTime')
            ? json_['startTime'] as core.String
            : null,
      );