pub trait ManagerExt<R: Runtime> {
// Required methods
fn get_webview_panel(&self, label: &str) -> Result<PanelHandle<R>, Error>;
fn remove_webview_panel(&self, label: &str) -> Option<PanelHandle<R>>;
}pub trait ManagerExt<R: Runtime> {
// Required methods
fn get_webview_panel(&self, label: &str) -> Result<PanelHandle<R>, Error>;
fn remove_webview_panel(&self, label: &str) -> Option<PanelHandle<R>>;
}