{"ast_node_type":"variable","tokens":[{"end":88,"kind":"keyword","start":0,"text":"let"}]}
                let byte_diff = self.ulonglong_type.get_size() as i64 - arg_size as i64;
                let casted_arg = self.context.new_cast(self.location, arg, self.ulonglong_type);
                let diff = self.context.new_rvalue_from_long(self.int_type, byte_diff * 8);