pub(crate) trait MutationRecordMethods<D: DomTypes> {
// Required methods
fn Type(&self) -> DOMString;
fn Target(&self) -> DomRoot<D::Node>;
fn AddedNodes(&self) -> DomRoot<D::NodeList>;
fn RemovedNodes(&self) -> DomRoot<D::NodeList>;
fn GetPreviousSibling(&self) -> Option<DomRoot<D::Node>>;
fn GetNextSibling(&self) -> Option<DomRoot<D::Node>>;
fn GetAttributeName(&self) -> Option<DOMString>;
fn GetAttributeNamespace(&self) -> Option<DOMString>;
fn GetOldValue(&self) -> Option<DOMString>;
}