const require_stringify = require("./stringify.cjs");
const require_rng = require("./rng.cjs");
//#region src/utils/uuid/v4.ts
function v4(options, buf, offset) {
	if (!buf && !options && crypto.randomUUID) return crypto.randomUUID();
	return _v4(options, buf, offset);
}
function _v4(options, buf, offset) {
	options = options || {};
	const rnds = options.random ?? options.rng?.() ?? require_rng.default();
	if (rnds.length < 16) throw new Error("Random bytes length must be >= 16");
	rnds[6] = rnds[6] & 15 | 64;
	rnds[8] = rnds[8] & 63 | 128;
	if (buf) {
		offset = offset || 0;
		if (offset < 0 || offset + 16 > buf.length) throw new RangeError(`UUID byte range ${offset}:${offset + 15} is out of buffer bounds`);
		for (let i = 0; i < 16; ++i) buf[offset + i] = rnds[i];
		return buf;
	}
	return require_stringify.unsafeStringify(rnds);
}
//#endregion
exports.default = v4;

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