{"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"self.arena.alloc(self.lower_pat_mut(pattern))"}]}
        self.arena.alloc(self.lower_pat_mut(pattern))
    pub(crate) fn lower_pat(&mut self, pattern: &Pat) -> &'hir hir::Pat<'hir> {
    }