To return a response with HTML directly from **FastAPI**, use `HTMLResponse`.

* Import `HTMLResponse`.
* Pass `HTMLResponse` as the parameter `response_class` of your *path operation decorator*.

{* ../../docs_src/custom_response/tutorial002_py310.py hl[2,7] *}

/// info

The parameter `response_class` will also be used to define the "media type" of the response.

    }

    /**
     * Sets the parameter key.
     * @param parameterKey The parameter key.
     */
    public void setParameterKey(final String parameterKey) {
        this.parameterKey = parameterKey;
    }

    /**
     * Sets whether the parameter value is encrypted.
     * @param encryptedParameterValue Whether the parameter value is encrypted.
     */

     */
    boolean isAbstract();

    /**
     * Returns {@literal true} if the method's parameter type at the specified index is parameterized.
     *
     * @param index
     *            the index of the parameter
     * @return {@literal true} if the parameter type at the specified index is parameterized
     */
    boolean isParameterized(int index);

    /**

    /**
     * Protected constructor.
     */
    protected ParameterUtil() {
        // nothing
    }

    /**
     * Parses parameter string into a map.
     *
     * @param value the parameter string
     * @return the parameter map
     */
    public static Map<String, String> parse(final String value) {
        final Map<String, String> paramMap = new LinkedHashMap<>();
        if (value != null) {

        // Verify constructor exists with Context parameter
        try {
            FessWebResourceRoot.class.getConstructor(Context.class);
            assertTrue("Constructor with Context parameter exists", true);
        } catch (final NoSuchMethodException e) {
            fail("Constructor with Context parameter should exist");
        }
    }

    @Test
    public void test_methodsExist() {

      <version>1.0.0</version>
      <name>ExpressionDocumentation</name>
      <description>The root of a parameter plugin expression document.</description>
      <fields>
        <field>
          <version>1.0.0</version>
          <name>expressions</name>
          <description>The list of plugin parameter expressions described by this
            document.</description>
          <association>

 * types, and also for interfaces and public classes that have public parameter-less constructors.
 * When the non-null default value for a particular parameter type cannot be provided by {@code
 * NullPointerTester}, the caller can provide a custom non-null default value for the parameter type
 * via {@link #setDefault}.
 *
 * @author Kevin Bourrillion
 * @since 10.0
 */
@GwtIncompatible

        // Verify total parameter count (4 bytes at position 3)
        assertEquals(100, SMBUtil.readInt4(dst, 3));

        // Verify total data count (4 bytes at position 7)
        assertEquals(200, SMBUtil.readInt4(dst, 7));

        // Verify parameter count (4 bytes at position 11)
        assertEquals(30, SMBUtil.readInt4(dst, 11));

        // Verify parameter offset (4 bytes at position 15)

# Header Parameter Models { #header-parameter-models }

If you have a group of related **header parameters**, you can create a **Pydantic model** to declare them.

This would allow you to **re-use the model** in **multiple places** and also to declare validations and metadata for all the parameters at once. 😎

/// note

This is supported since FastAPI version `0.115.0`. 🤓

///

      while (s < length) {
        val parameter = PARAMETER.matchAt(this, s)
        require(parameter != null) {
          "Parameter is not formatted correctly: \"${substring(s)}\" for: \"$this\""
        }

        val name = parameter.groups[1]?.value
        if (name == null) {
          s = parameter.range.last + 1
          continue
        }

        val token = parameter.groups[2]?.value
        val value =