how do I require.js?

Pasted by karl on Thu Oct 7 17:08:14 2021 UTC as JavaScript 
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// goal is for end user js to look like...

'use strict';
'require fs';
'require blah.logger'

return blah.logger.MagicLOgger("servicename-in-syslog", "Friendly name");


/// what I've got in luci-static/resources/blah/logger.js

var MagicLogger = function(logtag, name) {

/// boilerplate below from common app implementations
return L.view.extend({
	load: function() {
		return Promise.all([
			L.resolveDefault(fs.stat('/sbin/logread'), null),
			L.resolveDefault(fs.stat('/usr/sbin/logread'), null)
		]);
	},
	render: function(stat) {
		var logger = stat[0] ? stat[0].path : stat[1] ? stat[1].path : null;
		L.Poll.add(function() {
			return L.resolveDefault(fs.exec_direct(logger, ['-e', logtag])).then(function(res) {
				var log = document.getElementById("logfile");
				if (res) {
					log.value = res.trim();
				} else {
					log.value = _('No related logs yet!');
				}
				log.scrollTop = log.scrollHeight;
			});
		});
		return E('div', { class: 'cbi-map' },
			E('div', { class: 'cbi-section' }, [
			E('div', { class: 'cbi-section-descr' }, _('The syslog output, pre-filtered for messages related to: ' + name)),
			E('textarea', {
				'id': 'logfile',
				'style': 'width: 100% !important; padding: 5px; font-family: monospace',
				'readonly': 'readonly',
				'wrap': 'off',
				'rows': 25
			})
		]));
	},
	handleSaveApply: null,
	handleSave: null,
	handleReset: null
});
}
return MagicLogger;