{"ast_node_type":"variable","tokens":[{"end":79,"kind":"keyword","start":0,"text":"let"}]}
        let output_span = self.body.local_decls[RETURN_PLACE].source_info.span;
        let mir_output_ty = self.body.local_decls[RETURN_PLACE].ty;
        self.equate_normalized_input_or_output(normalized_output_ty, mir_output_ty, output_span);