load static method
Implementation
static MinishLab load(String path) {
if (path.trim().isEmpty) throw ArgumentError.value(path, 'path');
final current = _instance;
if (current != null && current.modelPath != path) {
throw StateError('MinishLab is already loaded from ${current.modelPath}');
}
_instance ??= getMinishLab(path);
return _instance!;
}