use zed_extension_api::{self as zed, Result}; struct UiuaExtension; impl zed::Extension for UiuaExtension {    fn new() -> Self {        Self    }     fn language_server_command(        &mut self,        _language_server_id: &zed::LanguageServerId,        worktree: &zed::Worktree,    ) -> Result<zed::Command> {        let path = worktree            .which("uiua")            .ok_or_else(|| "uiua is not installed".to_string())?;         Ok(zed::Command {            command: path,            args: vec!["lsp".to_string()],            env: Default::default(),        })    }} zed::register_extension!(UiuaExtension);