toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (energyEfficiency != null) 'energyEfficiency': energyEfficiency!,
if (sustainabilityCertifications != null)
'sustainabilityCertifications': sustainabilityCertifications!,
if (sustainableSourcing != null)
'sustainableSourcing': sustainableSourcing!,
if (wasteReduction != null) 'wasteReduction': wasteReduction!,
if (waterConservation != null) 'waterConservation': waterConservation!,
};