1 var metadata = require('./_metadata')
2 , anObject = require('./_an-object')
3 , ordinaryOwnMetadataKeys = metadata.keys
4 , toMetaKey = metadata.key;
6 metadata.exp({getOwnMetadataKeys: function getOwnMetadataKeys(target /*, targetKey */){
7 return ordinaryOwnMetadataKeys(anObject(target), arguments.length < 2 ? undefined : toMetaKey(arguments[1]));