Why you use timeout in code example?

[psqq]

I found an example here https://mtproto-core.js.org/docs/setup-handle-errors

      if (error_code === 420) {
        const seconds = Number(error_message.split('FLOOD_WAIT_')[1]);
        const ms = seconds * 1000;

        await sleep(ms);

        return this.call(method, params, options);
      }

Is it really a good idea for any api calls? The number of seconds can be more than 20 hours.