Method raw_tell

crates/vm/src/stdlib/_io.rs:990–1001

(&mut self, vm: &VirtualMachine)

        }

        fn raw_tell(&mut self, vm: &VirtualMachine) -> PyResult<Offset> {
            let raw = self.check_init(vm)?;
            let ret = vm.call_method(raw, "tell", ())?;
            let offset = get_offset(ret, vm)?;
            if offset < 0 {
                return Err(
                    vm.new_os_error(format!("Raw stream returned invalid position {offset}"))
                );
            }
            self.abs_pos = offset;
            Ok(offset)
        }

        fn raw_tell_cache(&mut self, vm: &VirtualMachine) -> PyResult<Offset> {
            if self.abs_pos == -1 {