load method
Implementation
Future<String?> load() async {
final file = await _bootstrapFile();
if (!await file.exists()) return null;
try {
final raw = await file.readAsString();
final json = jsonDecode(raw);
if (json is! Map<String, dynamic>) return null;
return readPathFromJson(json, jsonPathKey);
} catch (_) {
return null;
}
}