--- /dev/null
+var metadata = require('./_metadata')
+ , anObject = require('./_an-object')
+ , ordinaryHasOwnMetadata = metadata.has
+ , toMetaKey = metadata.key;
+
+metadata.exp({hasOwnMetadata: function hasOwnMetadata(metadataKey, target /*, targetKey */){
+ return ordinaryHasOwnMetadata(metadataKey, anObject(target)
+ , arguments.length < 3 ? undefined : toMetaKey(arguments[2]));
+}});
\ No newline at end of file