SessionModel constructor
      const
      SessionModel({ 
    
    
- required String id,
- required DateTime day,
- required String startDatetime,
- required String endDatetime,
- required MomentType type,
- dynamic heartRate,
- dynamic heartRateVariability,
- dynamic mood,
- dynamic motionCount,
Implementation
const SessionModel({
  required this.id,
  required this.day,
  required this.startDatetime,
  required this.endDatetime,
  required this.type,
  this.heartRate,
  this.heartRateVariability,
  this.mood,
  this.motionCount,
});