{"ast_node_type":"other","tokens":[{"end":33,"kind":"keyword","start":0,"text":"impl<'a,"}]}
impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
    pub(crate) fn autoderef(&'a self, span: Span, base_ty: Ty<'tcx>) -> Autoderef<'a, 'tcx> {