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1 files changed, 19 insertions, 0 deletions

diff --git a/node_modules/core-js/library/modules/es7.reflect.get-metadata-keys.js b/node_modules/core-js/library/modules/es7.reflect.get-metadata-keys.js
new file mode 100644
index 00000000..f344172b
--- /dev/null
+++ b/node_modules/core-js/library/modules/es7.reflect.get-metadata-keys.js
@@ -0,0 +1,19 @@
+var Set = require('./es6.set');
+var from = require('./_array-from-iterable');
+var metadata = require('./_metadata');
+var anObject = require('./_an-object');
+var getPrototypeOf = require('./_object-gpo');
+var ordinaryOwnMetadataKeys = metadata.keys;
+var toMetaKey = metadata.key;
+
+var ordinaryMetadataKeys = function (O, P) {
+  var oKeys = ordinaryOwnMetadataKeys(O, P);
+  var parent = getPrototypeOf(O);
+  if (parent === null) return oKeys;
+  var pKeys = ordinaryMetadataKeys(parent, P);
+  return pKeys.length ? oKeys.length ? from(new Set(oKeys.concat(pKeys))) : pKeys : oKeys;
+};
+
+metadata.exp({ getMetadataKeys: function getMetadataKeys(target /* , targetKey */) {
+  return ordinaryMetadataKeys(anObject(target), arguments.length < 2 ? undefined : toMetaKey(arguments[1]));
+} });