| Index: packages/matcher/lib/src/map_matchers.dart
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| diff --git a/packages/matcher/lib/src/map_matchers.dart b/packages/matcher/lib/src/map_matchers.dart
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| index a44148fa118bb48f9e1c070d3203a69a4ee8fdaa..47cddef75360ca6ae6b771adc109d15a2d25c63d 100644
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| --- a/packages/matcher/lib/src/map_matchers.dart
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| +++ b/packages/matcher/lib/src/map_matchers.dart
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| @@ -27,7 +27,7 @@ class _ContainsMapping extends Matcher {
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|    final _key;
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|    final Matcher _valueMatcher;
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|  
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| -  const _ContainsMapping(this._key, Matcher this._valueMatcher);
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| +  const _ContainsMapping(this._key, this._valueMatcher);
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|  
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|    bool matches(item, Map matchState) =>
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|        item.containsKey(_key) && _valueMatcher.matches(item[_key], matchState);
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| 
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