toBounds function
Implementation
CoordinateBounds toBounds(String bboxString) {
List<String> strings = bboxString.split(",");
return CoordinateBounds(
southwest: createPoint(double.parse(strings[0]), double.parse(strings[1])),
northeast: createPoint(double.parse(strings[2]), double.parse(strings[3])),
infiniteBounds: false
);
}