toJson method
Implementation
@override
Map<String, dynamic> toJson() => {
'type': type,
'name': name,
'ttl': ttl,
'version': version,
'size': size,
'horizontalPrecision': horizontalPrecision,
'verticalPrecision': verticalPrecision,
'latitude': latitude,
'longitude': longitude,
'altitude': altitude,
};