{"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"pub"}]}
    pub const IMPL: Key<ast::Impl, ImplId> = Key::new();
    pub const TYPE_ALIAS: Key<ast::TypeAlias, TypeAliasId> = Key::new();
    pub const EXTERN_BLOCK: Key<ast::ExternBlock, ExternBlockId> = Key::new();