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

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+'use strict';
+var call = require('../internals/function-call');
+var AsyncFromSyncIterator = require('../internals/async-from-sync-iterator');
+var anObject = require('../internals/an-object');
+var getIterator = require('../internals/get-iterator');
+var getIteratorDirect = require('../internals/get-iterator-direct');
+var getMethod = require('../internals/get-method');
+var wellKnownSymbol = require('../internals/well-known-symbol');
+
+var ASYNC_ITERATOR = wellKnownSymbol('asyncIterator');
+
+module.exports = function (it, usingIterator) {
+  var method = arguments.length < 2 ? getMethod(it, ASYNC_ITERATOR) : usingIterator;
+  return method ? anObject(call(method, it)) : new AsyncFromSyncIterator(getIteratorDirect(getIterator(it)));
+};