IsolateSpawnException class
class IsolateSpawnException implements Exception { const IsolateSpawnException(String this._s); String toString() => "IsolateSpawnException: '$_s'"; final String _s; }
class IsolateSpawnException implements Exception { const IsolateSpawnException(String this._s); String toString() => "IsolateSpawnException: '$_s'"; final String _s; }