toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (athletes != null) 'athletes': athletes!,
if (children != null) 'children': children!,
if (elderly != null) 'elderly': elderly!,
if (generalPopulation != null) 'generalPopulation': generalPopulation!,
if (heartDiseasePopulation != null)
'heartDiseasePopulation': heartDiseasePopulation!,
if (lungDiseasePopulation != null)
'lungDiseasePopulation': lungDiseasePopulation!,
if (pregnantWomen != null) 'pregnantWomen': pregnantWomen!,
};