getBoundsOfRadius function
Implementation
LatLngBounds getBoundsOfRadius(LatLng center, double radiusInMeter) {
final northEast = _getEndPoint(center, 45, radiusInMeter);
final southWest = _getEndPoint(center, 225, radiusInMeter);
return LatLngBounds(southwest: southWest, northeast: northEast);
}