{"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"chalk_ir::TyKind::FnDef(..)"}]}
                    chalk_ir::TyKind::FnDef(..) => {
                match &callee_ty.kind(Interner) {
                        let func = Operand::from_bytes(Box::default(), callee_ty.clone());