pub trait ElementInternalsMethods {
// Required methods
fn SetFormValue(
&self,
value: Option<FileOrUSVStringOrFormData>,
state: Option<Option<FileOrUSVStringOrFormData>>
) -> Result<(), Error>;
fn GetForm(&self) -> Result<Option<Root<Dom<HTMLFormElement>>>, Error>;
fn SetValidity(
&self,
flags: &ValidityStateFlags,
message: Option<DOMString>,
anchor: Option<&HTMLElement>
) -> Result<(), Error>;
fn GetWillValidate(&self) -> Result<bool, Error>;
fn GetValidity(&self) -> Result<Root<Dom<ValidityState>>, Error>;
fn GetValidationMessage(&self) -> Result<DOMString, Error>;
fn CheckValidity(&self) -> Result<bool, Error>;
fn ReportValidity(&self) -> Result<bool, Error>;
fn GetLabels(&self) -> Result<Root<Dom<NodeList>>, Error>;
}