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var getIteratorMethod = require('../internals/get-iterator-method');
var wellKnownSymbol = require('../internals/well-known-symbol');

var ASYNC_ITERATOR = wellKnownSymbol('asyncIterator');

module.exports = function (it) {
  var method = it[ASYNC_ITERATOR];
  return method === undefined ? getIteratorMethod(it) : method;
};