{* ../../docs_src/body_nested_models/tutorial002_py310.py hl[12] *}

## Set types { #set-types }

But then we think about it, and realize that tags shouldn't repeat, they would probably be unique strings.

And Python has a special data type for sets of unique items, the `set`.

Then we can declare `tags` as a set of strings:

    }

    // Test append with very long string
    @Test
    public void test_append_veryLongString() {
        StringBuilder buf = new StringBuilder();
        String longString = "a".repeat(10000);
        Supplier<Object> supplier = () -> longString;

        monitorTarget.append(buf, "longKey", supplier);
        assertTrue(buf.toString().startsWith("\"longKey\":\""));

        .isEqualTo(new FreshValueGenerator().generateFresh(String.class));
  }

  public void testFreshCurrency() {
    FreshValueGenerator generator = new FreshValueGenerator();
    // repeat a few times to make sure we don't stumble upon a bad Locale
    assertThat(generator.generateFresh(Currency.class)).isNotNull();
    assertThat(generator.generateFresh(Currency.class)).isNotNull();

 * Connection pooling reduces request latency (if HTTP/2 isn’t available).
 * Transparent GZIP shrinks download sizes.
 * Response caching avoids the network completely for repeat requests.

OkHttp perseveres when the network is troublesome: it will silently recover from common connection
problems. If your service has multiple IP addresses, OkHttp will attempt alternate addresses if the

	for _, growLen := range []int{0, 100, 1000, 10000, 100000} {
		for _, startLen := range []int{0, 100, 1000, 10000, 100000} {
			xBytes := Repeat(x, startLen)

			buf := NewBuffer(xBytes)
			// If we read, this affects buf.off, which is good to test.
			readBytes, _ := buf.Read(tmp)
			yBytes := Repeat(y, growLen)
			allocs := testing.AllocsPerRun(100, func() {
				buf.Grow(growLen)
				buf.Write(yBytes)
			})

fill='%23343a40' d='M2 0L0 2h4zm0 5L0 3h4z'/%3e%3c/svg%3e") right .75rem center/8px 10px no-repeat,#fff url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8' viewBox='0 0 8 8'%3e%3cpath fill='%2328a745' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e") center right 1.75rem/calc(.75em + .375rem) calc(.75em + .375rem) no-repeat}.custom-select.is-valid:focus,.was-validated .custom-select:valid:focus{border...

        this.messageBuilderFactory = messageBuilderFactory;
        this.terminalWidth = terminalWidth;
    }

    private static String chars(char c, int count) {
        return String.valueOf(c).repeat(Math.max(0, count));
    }

    private void infoLine(char c) {
        infoMain(chars(c, lineLength));
    }

    private void infoMain(String msg) {
        logger.info(builder().strong(msg).toString());

        }
        String result = activityHelper.normalizeScript(sb.toString());
        assertEquals(100, result.length());
        assertTrue(result.endsWith("..."));
        assertEquals("x".repeat(97) + "...", result);
    }

    OptionalThing<FessUserBean> createUser(String name, String[] permissions) {
        return OptionalThing.of(new FessUserBean(new TestUser(name, permissions)));
    }

lice(r[0].lastIndexOf("[")+1,-1))&&(n=n.slice(0,r.index)+"["+"a".repeat(r[0].length-2)+"]"+n.slice(this.tokenizer.rules.inline.reflinkSearch.lastIndex))}for(;(r=this.tokenizer.rules.inline.anyPunctuation.exec(n))!=null;)n=n.slice(0,r.index)+"++"+n.slice(this.tokenizer.rules.inline.anyPunctuation.lastIndex);let i;for(;(r=this.tokenizer.rules.inline.blockSkip.exec(n))!=null;)i=r[2]?r[2].length:0,n=n.slice(0,r.index+i)+"["+"a".repeat(r[0].length-i-2)+"]"+n.slice(this.tokenizer.rules.inline.blockSki...

  }

  @Test
  fun labelTooLongDueToAsciiExpansion() {
    val a60 = "a".repeat(60)
    assertThat(parse("http://\u2121$a60/").toString()).isEqualTo("http://tel$a60/")
    assertInvalid("http://a\u2121$a60/", "Invalid URL host: \"a\u2121$a60\"")
  }

  @Test
  fun hostnameTooLong() {
    val dotA126 = "a.".repeat(126)
    assertThat(parse("http://a$dotA126/").toString())