Who pays for the 482 visa?

Could you please clarify for me who exactly is responsible for covering the costs associated with the 482 visa? Is it the employer who sponsors the foreign worker, the worker themselves, or perhaps a combination of both? Additionally, are there any specific requirements or regulations in place that dictate how these costs must be allocated? I'm eager to understand the financial responsibilities surrounding this visa process to ensure that I'm fully prepared and compliant with all necessary regulations.