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'use strict';
require('../common');
const assert = require('assert');
const dgram = require('dgram');
const socket = dgram.createSocket('udp4');
socket.bind(0);
socket.on('listening', function() {
var result = socket.setTTL(16);
assert.strictEqual(result, 16);
assert.throws(function() {
socket.setTTL('foo');
}, /Argument must be a number/);
socket.close();
});