{[]string{}, "", 0, false},

		{str1, "foo", 0, true},
		{str1, "bar", 0, false},
		{str1, "zx", 1, false},

		{str2, "aa", 0, false},
		{str2, "ab", 0, true},
		{str2, "ad", 1, false},
		{str2, "ca", 1, true},
		{str2, "ra", 2, false},

		{str3, "bb", 0, false},
		{str3, "mo", 0, true},
		{str3, "nb", 1, false},
		{str3, "qo", 1, true},
		{str3, "tr", 2, false},
		{str3, "vo", 2, true},

		t.Fatal("exec insert", err)
	}
	var (
		str1 string
		dec1 decimalInt
		arr1 []int64
	)
	err = db.QueryRowContext(ctx, "SELECT|keys|dec1,str1,array1|").Scan(&dec1, &str1, &arr1)
	if err != nil {
		t.Fatal("select", err)
	}

	list := []struct{ got, want any }{
		{o1, "from-server"},
		{dec1, decimalInt{123}},
		{str1, "hello"},
		{arr1, []int64{42, 128, 707}},
	}

			obj: map[string]interface{}{
				"str": "this is a 123 string 456",
			},
			schema: objectTypePtr(map[string]schema.Structural{
				"str": stringType,
			}),
			valid: []string{
				"self.str.find('[0-9]+') == '123'",
				"self.str.find('[0-9]+') != '456'",
				"self.str.find('xyz') == ''",

				"self.str.findAll('[0-9]+') == ['123', '456']",
				"self.str.findAll('[0-9]+', 0) == []",

func lcpSuffix(strs []string) string {
	return lcp(strs, false)
}

func lcp(strs []string, pre bool) string {
	// short-circuit empty list
	if len(strs) == 0 {
		return ""
	}
	xfix := strs[0]
	// short-circuit single-element list
	if len(strs) == 1 {
		return xfix
	}
	// compare first to rest
	for _, str := range strs[1:] {
		xfixl := len(xfix)
		strl := len(str)

	}

	// Look for the expected things in the coverage profile.
	contents, err := os.ReadFile(textfile)
	strc := string(contents)
	if err != nil {
		t.Fatalf("problems reading text file %s: %v", textfile, err)
	}
	if !strings.Contains(strc, token) {
		t.Logf("content: %s\n", string(contents))
		t.Fatalf("cov profile does not contain aux meta content %q", token)
	}

}

// Get the server port from server.URL (e.g., https://127.0.0.1:36253)
func getServerPort(server *httptest.Server) (int, error) {
	strs := strings.Split(server.URL, ":")
	if len(strs) < 2 {
		return 0, fmt.Errorf("server.URL is invalid: %v", server.URL)
	}
	port, err := strconv.Atoi(strs[len(strs)-1])
	if err != nil {
		return 0, fmt.Errorf("error to extract port from URL: %v", server.URL)
	}
	return port, nil
}

    ```

The query parameter `q` is of type `Union[str, None]` (or `str | None` in Python 3.10), that means that it's of type `str` but could also be `None`, and indeed, the default value is `None`, so FastAPI will know it's not required.

!!! note
    FastAPI will know that the value of `q` is not required because of the default value `= None`.

    }.test();
  }

  public void testConcatPartiallyAdvancedSecond() {
    Iterator<String> itr1 =
        Iterators.concat(Iterators.singletonIterator("a"), Iterators.forArray("b", "c"));
    assertEquals("a", itr1.next());
    assertEquals("b", itr1.next());
    Iterator<String> itr2 = Iterators.concat(Iterators.singletonIterator("d"), itr1);
    assertEquals("d", itr2.next());
    assertEquals("c", itr2.next());
  }

		slice.SetType(s.Type())
		slice.SetBounded(true)

		ptr1, len1 := backingArrayPtrLen(cheapExpr(slice, &nodes))
		ptr2, len2 := backingArrayPtrLen(l2)

		fn := typecheck.LookupRuntime("slicecopy", ptr1.Type().Elem(), ptr2.Type().Elem())
		ncopy = mkcall1(fn, types.Types[types.TINT], &nodes, ptr1, len1, ptr2, len2, ir.NewInt(base.Pos, elemtype.Size()))
	} else {

	s := Collect(testSeq)
	want := testSeqResult
	if !Equal(s, want) {
		t.Errorf("got %v, want %v", s, want)
	}
}

var iterTests = [][]string{
	nil,
	{"a"},
	{"a", "b"},
	{"b", "a"},
	strs[:],
}

func TestValuesAppendSeq(t *testing.T) {
	for _, prefix := range iterTests {
		for _, s := range iterTests {
			got := AppendSeq(prefix, Values(s))
			want := append(prefix, s...)