syntax_data: {"ast_node_type":"function","tokens":[{"end":77,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn type_of(self, def_id: Self::DefId) -> ty::EarlyBinder<Self, Self::Ty>;
context_after:     fn type_of_opaque_hir_typeck(self, def_id: Self::LocalDefId)