field := st.Field(i)
		if alias, ok := field.Tag.Lookup("alias"); ok {
			if alias == "" {
				fmt.Println("(blank)")
			} else {
				fmt.Println(alias)
			}
		} else {
			fmt.Println("(not specified)")
		}
	}

	// Output:
	// field_0
	// (blank)
	// (not specified)
}

func ExampleTypeOf() {
	// As interface types are only used for static typing, a

				line := fset.PositionFor(impspec.Path.ValuePos, false).Line

				// We deleted an entry but now there may be
				// a blank line-sized hole where the import was.
				if line-lastLine > 1 || !gen.Rparen.IsValid() {
					// There was a blank line immediately preceding the deleted import,
					// so there's no need to close the hole. The right parenthesis is

        if (StringUtil.isBlank(endpoint)) {
            throw new CrawlingAccessException("endpoint is blank.");
        }
        builder.endpoint(endpoint);
        final String accessKey = getInitParameter("accessKey", null, String.class);
        if (StringUtil.isBlank(accessKey)) {
            throw new CrawlingAccessException("accessKey is blank.");
        }
        final String secretKey = getInitParameter("secretKey", null, String.class);

	func Constructor[lowerCase any]() Type[lowerCase]

	// MethodA uses a different name for its receiver type parameter. 
	func (t Type[A]) MethodA(p A)

	// MethodB has a blank receiver type parameter. 
	func (t Type[_]) MethodB()

	// MethodC has a lower-case receiver type parameter. 

	func Constructor[lowerCase any]() Type[lowerCase]

	// MethodA uses a different name for its receiver type parameter. 
	func (t Type[A]) MethodA(p A)

	// MethodB has a blank receiver type parameter. 
	func (t Type[_]) MethodB()

	// MethodC has a lower-case receiver type parameter. 

    public void addMaxLength(final String mimeType, final long maxLength) {
        if (StringUtil.isBlank(mimeType)) {
            throw new CrawlerSystemException("MIME type is a blank.");
        }
        if (maxLength < 0) {
            throw new CrawlerSystemException("The value of maxLength is invalid.");
        }
        maxLengthMap.put(mimeType, maxLength);
    }

		validModes.Insert(string(kubeproxyconfig.ProxyModeNFTables))
	}

	if mode == "" || validModes.Has(string(mode)) {
		return nil
	}

	errMsg := fmt.Sprintf("must be %s or blank (blank means the best-available proxy [currently iptables])", strings.Join(sets.List(validModes), ", "))
	return field.ErrorList{field.Invalid(fldPath.Child("ProxyMode"), string(mode), errMsg)}
}

ASCII character classes:

	[[:alnum:]]    alphanumeric (== [0-9A-Za-z])
	[[:alpha:]]    alphabetic (== [A-Za-z])
	[[:ascii:]]    ASCII (== [\x00-\x7F])
	[[:blank:]]    blank (== [\t ])
	[[:cntrl:]]    control (== [\x00-\x1F\x7F])
	[[:digit:]]    digits (== [0-9])
	[[:graph:]]    graphical (== [!-~] == [A-Za-z0-9!"#$%&'()*+,\-./:;<=>?@[\\\]^_`{|}~])
	[[:lower:]]    lower case (== [a-z])

	"c"
)`,
			want: []string{"a", "c"},
		},
		{
			name: "named import",
			in: `package p
import (
	"a"
	n "b"

	m "c"
	"d"
)`,
			want: []string{"a", "c"},
		},
		{
			name: "blank import",
			in: `package p
import (
	"a"

	_ "b"

	_ "c"
	"d"
)`,
			want: []string{"a", "b", "c"},
		},
	} {
		t.Run(test.name, func(t *testing.T) {
			fset := token.NewFileSet()

	func Constructor[lowerCase any]() Type[lowerCase]

	// MethodA uses a different name for its receiver type parameter. 
	func (t Type[A]) MethodA(p A)

	// MethodB has a blank receiver type parameter. 
	func (t Type[_]) MethodB()

	// MethodC has a lower-case receiver type parameter. 
	func (t Type[c]) MethodC()

	// int16 shadows the predeclared type int16.