| Index: pkg/yaml/lib/yaml_map.dart
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| diff --git a/pkg/yaml/lib/yaml_map.dart b/pkg/yaml/lib/yaml_map.dart
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| index 65dd11994f04684fa039b946fd65d1d861455534..cbf18e5d21122871c44a9b732f447589e4834e85 100644
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| --- a/pkg/yaml/lib/yaml_map.dart
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| +++ b/pkg/yaml/lib/yaml_map.dart
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| @@ -29,7 +29,7 @@ class YamlMap implements Map {
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|    void clear() => _map.clear();
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|    void forEach(void f(key, value)) =>
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|      _map.forEach((k, v) => f(_unwrapKey(k), v));
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| -  Iterable get keys => _map.keys.mappedBy(_unwrapKey);
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| +  Iterable get keys => _map.keys.map(_unwrapKey);
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|    Iterable get values => _map.values;
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|    int get length => _map.length;
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|    bool get isEmpty => _map.isEmpty;
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| 
 |