This file is indexed.

/usr/lib/nodejs/es5-ext/object/ensure-natural-number-value.js is in node-es5-ext 0.10.30-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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"use strict";

var ensure  = require("./ensure-natural-number")
  , isValue = require("./is-value");

module.exports = function (arg) {
	if (!isValue(arg)) throw new TypeError(arg + " is not a natural number");
	return ensure(arg);
};