syntax_data: {"ast_node_type":"function","tokens":[{"end":80,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet:     pub fn all_impls(self, trait_def_id: DefId) -> impl Iterator<Item = DefId> {
context_before:     /// `trait_def_id` MUST BE the `DefId` of a trait.
context_after:         let TraitImpls { blanket_impls, non_blanket_impls } = self.trait_impls_of(trait_def_id);