File: exceptions.dart

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emacs-dart-mode 1.0.7%2Bgit20250811.edb45cb-1
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if (astronauts == 0) {
  throw StateError('No astronauts.');
}

try {
  for (var object in flybyObjects) {
    var description = await File('$object.txt').readAsString();
    print(description);
  }
} on IOException catch (e) {
  print('Could not describe object: $e');
} finally {
  flybyObjects.clear();
}