String input = content.replaceAll("[\\r\\n]", " ");
        if (ignoreCommentTag) {
            input = input.replaceAll("<!--[^>]+-->", "");
        } else {
            input = input.replace("<!--", "").replace("-->", "");
        }
        final Matcher matcher = getTagPattern().matcher(input);
        final StringBuffer sb = new StringBuffer();
        final Pattern attrPattern = Pattern.compile("\\s[^ ]+=\"([^\"]*)\"");

    class ModelWithDatetimeField(BaseModel):
        dt_field: datetime

        @field_serializer("dt_field")
        def serialize_datetime(self, dt_field: datetime):
            return dt_field.replace(microsecond=0, tzinfo=timezone.utc).isoformat()

    app = FastAPI()
    model = ModelWithDatetimeField(dt_field=datetime(2019, 1, 1, 8))

    @app.get("/model", response_model=ModelWithDatetimeField)
    def get_model():

    assertNull(map.putIfAbsent(three, one));
    assertSame(one, map.get(three));
    assertSame(two, map.replace(one, three));
    assertSame(three, map.get(one));
    assertFalse(map.replace(one, two, three));
    assertSame(three, map.get(one));
    assertTrue(map.replace(one, three, two));
    assertSame(two, map.get(one));
    assertEquals(3, map.size());

    map.clear();

    assertNull(map.putIfAbsent(three, one));
    assertSame(one, map.get(three));
    assertSame(two, map.replace(one, three));
    assertSame(three, map.get(one));
    assertFalse(map.replace(one, two, three));
    assertSame(three, map.get(one));
    assertTrue(map.replace(one, three, two));
    assertSame(two, map.get(one));
    assertEquals(3, map.size());

    map.clear();

    cache.put(10, 100);
    cache.put(2, 52);

    asMap.replace(2, 79);
    asMap.replace(3, 60);

    assertEquals(null, cache.getIfPresent(3));
    assertEquals(null, asMap.get(3));

    assertEquals(Integer.valueOf(79), cache.getIfPresent(2));
    assertEquals(Integer.valueOf(79), asMap.get(2));

    asMap.replace(10, 100, 50);
    asMap.replace(2, 52, 99);

    long newValue = random.nextInt(MAX_ADDEND);
    for (int i = 0; i < ITERATIONS; i++) {
      long before = map.get(key);
      assertFalse(map.replace(key, before + 1, newValue + 1));
      assertFalse(map.replace(key, before - 1, newValue - 1));
      assertTrue(map.replace(key, before, newValue));
      long after = map.get(key);
      assertEquals(newValue, after);
      newValue += newValue;
    }

	if u.detail == "" {
		if u.msg != "" {
			return u.msg
		}
		return "<nil>"
	}
	return u.detail
}

// Msg - Replace the current error's message
func (u Err) Msg(m string) Err {
	e := u.Clone()
	e.msg = m
	return e
}

// Msgf - Replace the current error's message
func (u Err) Msgf(m string, args ...interface{}) Err {
	e := u.Clone()
	if len(args) == 0 {
		e.msg = m
	} else {

            element.setTextContent(normalise(element.getTextContent()))
        }
    }

    static String normalise(String content) {
        content.replace('\t', '    ').stripIndent().replace('\r\n', '\n')
    }

    def transformApiLinks(Document doc) {
        ClassMetaDataRepository<ClassLinkMetaData> linkRepository = new SimpleClassMetaDataRepository<ClassLinkMetaData>()

                        const value = line.replace(promptLiteralStart, "").trimEnd();
                        useLines.push({
                            type: "input",
                            value: value
                        });
                    } else if (line.startsWith("// ")) {
                        saveBuffer();
                        const value = "💬 " + line.replace("// ", "").trimEnd();

}

// Raw - returns the underlying data with format info.
func (r *Record) Raw() (sql.SelectObjectFormat, interface{}) {
	return sql.SelectFmtCSV, r
}

// Replace - is not supported for CSV
func (r *Record) Replace(_ interface{}) error {
	return errors.New("Replace is not supported for CSV")
}

// NewRecord - creates new CSV record.
func NewRecord() *Record {
	return &Record{}