pub trait ProxyAddressExt: 'static {
// Required methods
fn get_destination_hostname(&self) -> GString;
fn get_destination_port(&self) -> u16;
fn get_destination_protocol(&self) -> Option<GString>;
fn get_password(&self) -> Option<GString>;
fn get_protocol(&self) -> GString;
fn get_uri(&self) -> Option<GString>;
fn get_username(&self) -> Option<GString>;
}