{"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"self"}]}
    self as ast, AssocItem, AssocItemKind, Block, ConstItem, Delegation, Fn, ForeignItem,
use rustc_ast::{
    ForeignItemKind, Impl, Item, ItemKind, NodeId, StaticItem, StmtKind, TyAlias,