// return any host whether it is IP or String
return any host whether it is IP or String
return any host whether it is IP or String
pub fn host(&self) -> Option<String> {
        if self.ingress.is_empty() {
            None
        } else {
            self.ingress[0].host()
        }
    }
pub fn host ( & self ) -> Option < String > { if self . ingress . is_empty ( ) { None } else { self . ingress [ 0 ] . host ( ) } }
return any host whether it is IP or String
return any host whether it is IP or String
&self