toJson method
Implementation
Map<String, dynamic> toJson() {
final Map<String, dynamic> data = {
'thrust': thrust.toJson(),
'payloads': payloads.toJson(),
'reusable': reusable,
'engines': engines,
'fuel_amount_tons': fuelAmountTons,
'burn_time_sec': burnTimeSec,
};
return data;
}