toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (aqi != null) 'aqi': aqi!,
if (aqiDisplay != null) 'aqiDisplay': aqiDisplay!,
if (category != null) 'category': category!,
if (code != null) 'code': code!,
if (color != null) 'color': color!,
if (displayName != null) 'displayName': displayName!,
if (dominantPollutant != null) 'dominantPollutant': dominantPollutant!,
};