/** Get the name of the current operating system. By default, the name of the current operating system is returned. @param platform - Custom platform name. @param release - Custom release name. @example ``` import os from 'node:os'; import osName from 'os-name'; // On a macOS Sierra system osName(); //=> 'macOS Sierra' osName(os.platform(), os.release()); //=> 'macOS Sierra' osName('darwin', '14.0.0'); //=> 'OS X Yosemite' osName('linux', '3.13.0-24-generic'); //=> 'Linux 3.13' osName('win32', '6.3.9600'); //=> 'Windows 8.1' ``` */ export default function osName(): string; export default function osName(platform: NodeJS.Platform, release: string): string;