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

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+'use strict';
+var call = require('../internals/function-call');
+var anObject = require('../internals/an-object');
+var getIteratorDirect = require('../internals/get-iterator-direct');
+var getIteratorMethod = require('../internals/get-iterator-method');
+
+module.exports = function (obj, stringHandling) {
+  if (!stringHandling || typeof obj !== 'string') anObject(obj);
+  var method = getIteratorMethod(obj);
+  return getIteratorDirect(anObject(method !== undefined ? call(method, obj) : obj));
+};