{"ast_node_type":"variable","tokens":[{"end":42,"kind":"keyword","start":0,"text":"let"}]}
    let trait_ = trait_ref.hir_trait_id();
    let bound_vars = generic_params.bound_vars_subst(db, DebruijnIndex::INNERMOST);
    let impl_type = if impl_id.lookup(db).container.krate() == krate {