Duration.fromMap constructor
      
      Duration.fromMap(
    
    
- Map map
Implementation
factory Duration.fromMap(Map map) {
  return Duration(
    secs: map["secs"],
    nanos: map["nanos"],
  );
}factory Duration.fromMap(Map map) {
  return Duration(
    secs: map["secs"],
    nanos: map["nanos"],
  );
}