syntax_data: {"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"ty::ImplTraitInTraitData::Trait"}]}
source_snippet:                 ty::ImplTraitInTraitData::Trait { fn_def_id, .. }
context_before:             && let Some(
context_after:                 | ty::ImplTraitInTraitData::Impl { fn_def_id, .. },