toMap method
Convert to map for serialization
Implementation
Map<String, dynamic> toMap() {
return {
'name': name,
if (description != null) 'description': description,
'startNanoTime': startNanoTime,
'endNanoTime': endNanoTime,
'durationMs': durationMs,
'elapsed_ms': durationMs, // Add elapsed_ms field for step duration
};
}