toJson method
Implementation
Map<String, dynamic> toJson() => {
"place_id": placeId,
"lat": lat,
"lon": lng,
"display_name": displayName,
"place_rank": placeRank,
"category": category,
"type": type,
"importance": importance,
"osm_type": osmType,
"osm_id": osmId,
};