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node_modules/core-js/internals/async-iterator-close.js

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+'use strict';
+var call = require('../internals/function-call');
+var getBuiltIn = require('../internals/get-built-in');
+var getMethod = require('../internals/get-method');
+
+module.exports = function (iterator, method, argument, reject) {
+  try {
+    var returnMethod = getMethod(iterator, 'return');
+    if (returnMethod) {
+      return getBuiltIn('Promise').resolve(call(returnMethod, iterator)).then(function () {
+        method(argument);
+      }, function (error) {
+        reject(error);
+      });
+    }
+  } catch (error2) {
+    return reject(error2);
+  } method(argument);
+};