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node_modules/set-proto/index.js

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+'use strict';
+
+var reflectSetProto = require('./Reflect.setPrototypeOf');
+var originalSetProto = require('./Object.setPrototypeOf');
+
+var setDunderProto = require('dunder-proto/set');
+
+var $TypeError = require('es-errors/type');
+
+/** @type {import('.')} */
+module.exports = reflectSetProto
+	? function setProto(O, proto) {
+		// @ts-expect-error TS can't narrow inside a closure, for some reason
+		if (reflectSetProto(O, proto)) {
+			return O;
+		}
+		throw new $TypeError('Reflect.setPrototypeOf: failed to set [[Prototype]]');
+	}
+	: originalSetProto || (
+		setDunderProto ? function setProto(O, proto) {
+			// @ts-expect-error TS can't narrow inside a closure, for some reason
+			setDunderProto(O, proto);
+			return O;
+		} : null
+	);