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node_modules/core-js/modules/esnext.reflect.has-metadata.js

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+'use strict';
+// TODO: Remove from `core-js@4`
+var $ = require('../internals/export');
+var ReflectMetadataModule = require('../internals/reflect-metadata');
+var anObject = require('../internals/an-object');
+var getPrototypeOf = require('../internals/object-get-prototype-of');
+
+var ordinaryHasOwnMetadata = ReflectMetadataModule.has;
+var toMetadataKey = ReflectMetadataModule.toKey;
+
+var ordinaryHasMetadata = function (MetadataKey, O, P) {
+  var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P);
+  if (hasOwn) return true;
+  var parent = getPrototypeOf(O);
+  return parent !== null ? ordinaryHasMetadata(MetadataKey, parent, P) : false;
+};
+
+// `Reflect.hasMetadata` method
+// https://github.com/rbuckton/reflect-metadata
+$({ target: 'Reflect', stat: true }, {
+  hasMetadata: function hasMetadata(metadataKey, target /* , targetKey */) {
+    var targetKey = arguments.length < 3 ? undefined : toMetadataKey(arguments[2]);
+    return ordinaryHasMetadata(metadataKey, anObject(target), targetKey);
+  }
+});