Poi constructor
Poi({})
Implementation
Poi({
this.internationalPhone,
this.openingHours,
this.phone,
this.photoUrls,
this.poiTypes,
this.hwPoiTypes,
double? rating,
this.websiteUrl,
int? priceLevel,
this.businessStatus,
this.childrenNodes,
this.icon,
}) : rating = rating ?? 0,
priceLevel = priceLevel ?? -1;