syntax_data: {"ast_node_type":"variable","tokens":[{"end":54,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:         let generics = interner.generics_of(trait_id);
context_before:     pub fn from_method(interner: I, trait_id: I::DefId, args: I::GenericArgs) -> TraitRef<I> {
context_after:         TraitRef::new(interner, trait_id, args.iter().take(generics.count()))