pub trait DOMHTMLFrameSetElementExt: 'static {
fn cols(&self) -> Option<GString>;
fn rows(&self) -> Option<GString>;
fn set_cols(&self, value: &str);
fn set_rows(&self, value: &str);
fn connect_cols_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId;
fn connect_rows_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId;
}