## set_website_id() Set the default website ID used for subsequent calls. Usage ``` python set_website_id(website_id) ``` An Umami instance can have many registered websites. Call this once to choose which website later calls (new_event(), new_page_view(), website_stats(), active_users()) target by default. Individual calls can override it via their website_id parameter. ## Parameters `website_id: str` The website ID from Umami for your registered site (e.g. '978435e2-7ba1-4337-9860-ec31ece2db60').