Now, let's see how you could use that to return a custom response.

Let's say that you want to return an [XML](https://en.wikipedia.org/wiki/XML) response.

You could put your XML content in a string, put that in a `Response`, and return it:

{* ../../docs_src/response_directly/tutorial002_py310.py hl[1,18] *}

## How a Response Model Works { #how-a-response-model-works }

  public boolean equals(@Nullable Object obj) {
    return delegate.equals(obj);
  }

  @Override
  public int hashCode() {
    return delegate.hashCode();
  }

  @Override
  public String toString() {
    return delegate.toString();
  }

  private static final long serialVersionUID = 0L;

    ArithmeticException expected =
        assertThrows(
            ArithmeticException.class,
            () -> MathPreconditions.checkInRangeForRoundingInputs(false, 1.0, RoundingMode.UP));
    // b/38490623: The string contains "1.0" under most environment but just "1" under J2CL.
    assertThat(expected).hasMessageThat().contains("1");
    assertThat(expected).hasMessageThat().contains("UP");
  }

    assertEquals(0, stopwatch.elapsed(MILLISECONDS));
    ticker.advance(1);
    assertEquals(1, stopwatch.elapsed(MILLISECONDS));
  }

  @J2ktIncompatible // TODO(b/259213718): Switch J2kt to String.format("%.4g") once that's supported
  public void testToString() {
    stopwatch.start();
    assertThat(stopwatch.toString()).isEqualTo("0.000 ns");
    ticker.advance(1);

 *   public <T> Iterable<? extends T> listIsSubtypeOfIterable(List<T> list) {
 *     return isSubtype(list);
 *   }
 *
 *   @TestSubtype
 *   public List<String> intListIsNotSubtypeOfStringList(List<Integer> intList) {
 *     return notSubtype(intList);
 *   }
 * }
 *
 * public void testMySubtypes() throws Exception {
 *   new MySubtypeTests().testAllDeclarations();
 * }

        if (visited.contains(from)) {
            return;
        }

        visited.add(from);

        List<MetadataGraphEdge> exitList = graph.getExcidentEdges(from);
        // String s = "|---> "+from.getMd().toString()+" - "+(exitList == null ? -1 : exitList.size()) + " exit links";
        if (exitList != null && !exitList.isEmpty()) {
            for (MetadataGraphEdge e : graph.getExcidentEdges(from)) {

 * <code>Maven</code> channels.<br>
 * There should be no big surprises here, although you may notice that the methods accept
 * <code>java.lang.CharSequence</code> rather than <code>java.lang.String</code>. This is provided mainly as a
 * convenience, to enable developers to pass things like <code>java.lang.StringBuffer</code> directly into the logger,
 * rather than formatting first by calling <code>toString()</code>.
 *
 *

# CORS (Cross-Origin Resource Sharing) { #cors-cross-origin-resource-sharing }

[CORS veya "Cross-Origin Resource Sharing"](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS), tarayıcıda çalışan bir frontend’in JavaScript kodunun bir backend ile iletişim kurduğu ve backend’in frontend’den farklı bir "origin"de olduğu durumları ifade eder.

## Origin { #origin }

      hash *= 31;
      hash += Double.hashCode(array[i]);
    }
    return hash;
  }

  /**
   * Returns a string representation of this array in the same form as {@link
   * Arrays#toString(double[])}, for example {@code "[1, 2, 3]"}.
   */
  @Override
  public String toString() {
    if (isEmpty()) {
      return "[]";
    }

      hash *= 31;
      hash += Integer.hashCode(array[i]);
    }
    return hash;
  }

  /**
   * Returns a string representation of this array in the same form as {@link
   * Arrays#toString(int[])}, for example {@code "[1, 2, 3]"}.
   */
  @Override
  public String toString() {
    if (isEmpty()) {
      return "[]";
    }