i18n.ts
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i18n.ts
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	import * as assert from "assert";
	import languages from "./languages/languages.js";

	export default (default_language: string) => {
	assert.ok(default_language);
	assert.ok(languages[default_language]);

	return (key: string, params: unknown[]) => {
	let translation: string \| null = null;
	const languageData = languages[default_language];
	if (!languageData) {
	throw new Error("default language is missing");
	}
	const languageDataKey = languageData[key];
	if (languageDataKey) {
	translation = languageDataKey(...(params \|\| []));
	}

	return translation == null ? key : translation;
	};
	};