pub trait PerformanceObserverEntryListMethods<D>where
    D: DomTypes,{
    // Required methods
    fn GetEntries(&self) -> Vec<Root<Dom<<D as DomTypes>::PerformanceEntry>>>;
    fn GetEntriesByType(
        &self,
        entryType: DOMString,
    ) -> Vec<Root<Dom<<D as DomTypes>::PerformanceEntry>>>;
    fn GetEntriesByName(
        &self,
        name: DOMString,
        entryType: Option<DOMString>,
    ) -> Vec<Root<Dom<<D as DomTypes>::PerformanceEntry>>>;
}