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home/ags/node_modules/is-builtin-module/index.js

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+'use strict';
+const builtinModules = require('builtin-modules');
+
+const moduleSet = new Set(builtinModules);
+const NODE_PROTOCOL = 'node:';
+
+module.exports = moduleName => {
+	if (typeof moduleName !== 'string') {
+		throw new TypeError('Expected a string');
+	}
+
+	if (moduleName.startsWith(NODE_PROTOCOL)) {
+		moduleName = moduleName.slice(NODE_PROTOCOL.length);
+	}
+
+	const slashIndex = moduleName.indexOf('/');
+	if (slashIndex !== -1 && slashIndex !== moduleName.length - 1) {
+		moduleName = moduleName.slice(0, slashIndex);
+	}
+
+	return moduleSet.has(moduleName);
+};