syntax_data: {"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"assumed_wf_types_for_rpitit:"}]}
source_snippet:         assumed_wf_types_for_rpitit: |tcx, def_id| {
context_before:         assumed_wf_types,
context_after:             assert!(tcx.is_impl_trait_in_trait(def_id.to_def_id()));