text: var fails = require('../internals/fails');
  var isObject = require('../internals/is-object');
  var classof = require('../internals/classof-raw');
  var ARRAY_BUFFER_NON_EXTENSIBLE = require('../internals/array-buffer-non-extensible');
  
  // eslint-disable-next-line es/no-object-isextensible -- safe
  var $isExtensible = Object.isExtensible;
  var FAILS_ON_PRIMITIVES = fails(function () { $isExtensible(1); });
  
  // `Object.isExtensible` method
  // https://tc39.es/ecma262/#sec-object.isextensible
  module.exports = (FAILS_ON_PRIMITIVES || ARRAY_BUFFER_NON_EXTENSIBLE) ? function isExtensible(it) {
    if (!isObject(it)) return false;
    if (ARRAY_BUFFER_NON_EXTENSIBLE && classof(it) == 'ArrayBuffer') return false;
    return $isExtensible ? $isExtensible(it) : true;
  } : $isExtensible;
  