/// Returns a mutable iterator over the elements.
Returns a mutable iterator over the elements.
Returns a mutable iterator over the elements .
pub fn element_iter_mut(&mut self) -> ElementIterMut<'_> {
        self.iter_mut()
            .map(ElementList::iter_mut as IterMutFn)
            .flatten()
    }
pub fn element_iter_mut ( & mut self ) -> ElementIterMut < ' _ > { self . iter_mut ( ) . map ( ElementList :: iter_mut as IterMutFn ) . flatten ( ) }
Returns a mutable iterator over the elements.
Returns a mutable iterator over the elements .
&mut self