const BufSize = 8
	buf := new(strings.Builder)
	b := NewWriterSize(buf, BufSize)
	b.WriteString("0")                         // easy
	b.WriteString("123456")                    // still easy
	b.WriteString("7890")                      // easy after flush
	b.WriteString("abcdefghijklmnopqrstuvwxy") // hard
	b.WriteString("z")
	if err := b.Flush(); err != nil {
		t.Error("WriteString", err)
	}

### Translations

* 🌐 Add Russian translation for `docs/ru/docs/tutorial/cookie-params.md`. PR [#5890](https://github.com/tiangolo/fastapi/pull/5890) by [@bnzone](https://github.com/bnzone).

### Internal