{"ast_node_type":"variable","tokens":[{"end":96,"kind":"keyword","start":0,"text":"let"}]}
                let casted_arg = self.context.new_cast(self.location, arg, self.ulonglong_type);
                let arg_size = arg_type.get_size();
                let byte_diff = self.ulonglong_type.get_size() as i64 - arg_size as i64;