</field>
      </fields>
    </class>

    <class xdoc.anchorName="parameter">
      <name>Parameter</name>
      <version>1.0.0+</version>
      <description>A parameter description.</description>
      <!-- see o.a.m.plugin.descriptor.Parameter -->
      <fields>
        <field>
          <name>name</name>
          <version>1.0.0+</version>

    private int currentPageNumber;

    /** Search parameter: elevate word ID */
    public String id;

    /** Search parameter: suggest word */
    public String suggestWord;

    /** Search parameter: boost value */
    public String boost;

    /** Search parameter: created by user */
    public String createdBy;

    /** Search parameter: creation time */
    public String createdTime;

    }

    /**
     * Extracts and parses parameters from the request query string.
     * Applies the specified character encoding to decode parameter values.
     *
     * @param request the HTTP request containing the query string
     * @param enc the character encoding to use for decoding
     * @return a map of parameter names to their decoded values

    }

    /**
     * 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.
     */

///

### Declarar un *path parameter*

Luego crea un *path parameter* con una anotación de tipo usando la clase enum que creaste (`ModelName`):

{* ../../docs_src/path_params/tutorial005.py hl[16] *}

### Revisa la documentación

Como los valores disponibles para el *path parameter* están predefinidos, la documentación interactiva puede mostrarlos de manera ordenada:

                return null;
            }
        };

        // Test with string parameter
        Map<String, Object> stringParams = new HashMap<>();
        stringParams.put("string", "test");
        assertNotNull(queryRescorer.evaluate(stringParams));

        // Test with number parameter
        Map<String, Object> numberParams = new HashMap<>();
        numberParams.put("number", 123);

# 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`. 🤓

///

    }
  }

  /*
   * Preconditions.checkNotNull is *intended* for performing eager null checks on parameters that a
   * nullness checker can already "prove" are non-null. That means that the first parameter to
   * checkNotNull *should* be annotated to require it to be non-null.
   *
   * However, for a variety of reasons, Google developers have written a ton of code over the past

    /**
     * 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) {

# Response-Cookies

## Einen `Response`-Parameter verwenden

Sie können einen Parameter vom Typ `Response` in Ihrer *Pfadoperation-Funktion* deklarieren.

Und dann können Sie Cookies in diesem *vorübergehenden* Response-Objekt setzen.

{* ../../docs_src/response_cookies/tutorial002.py hl[1,8:9] *}

Anschließend können Sie wie gewohnt jedes gewünschte Objekt zurückgeben (ein `dict`, ein Datenbankmodell, usw.).