# Parâmetros de Cabeçalho

Você pode definir parâmetros de Cabeçalho da mesma maneira que define paramêtros com `Query`, `Path` e `Cookie`.

## importe `Header`

Primeiro importe `Header`:

//// tab | Python 3.10+

```Python hl_lines="1"
{!> ../../docs_src/header_params/tutorial001_py310.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="3"
{!> ../../docs_src/header_params/tutorial001.py!}
```

////

* `routes`: A list of routes, these are each of the registered *path operations*. They are taken from `app.routes`.

/// info

The parameter `summary` is available in OpenAPI 3.1.0 and above, supported by FastAPI 0.99.0 and above.

///

## Overriding the defaults

    doClose(closeable, swallowException, !swallowException);
  }

  // Close the closeable using the Closeables, passing in the swallowException
  // parameter. expectThrown determines whether we expect an exception to
  // be thrown by Closeables.close;
  private void doClose(Closeable closeable, boolean swallowException, boolean expectThrown)
      throws IOException {
    try {

            Map<String, Object> parameters = new HashMap<>();
            // NOTE: These parameter names _must_ match the setter names in ReleaseNotesTransformer
            parameters.put("baseCss", getBaseCssFile().get().getAsFile());
            parameters.put("releaseNotesCss", getReleaseNotesCssFile().get().getAsFile());

import "errors"

// ErrNotImplemented is returned when a requested feature is not implemented.
var ErrNotImplemented = errors.New("not implemented")

// Program defines a method which programs iptables based on the parameters
// provided in Redirect.
func (ipt *iptables) Program(podName, netns string, rdrct *Redirect) error {
	return ErrNotImplemented

  }

  @Test
  fun kotlinReifiedTag() {
    val uuidTag = "1234"
    val request =
      Request.Builder()
        .url("https://square.com")
        .tag<String>(uuidTag) // Use the type parameter.
        .build()
    assertThat(request.tag<String>()).isSameAs("1234")
    assertThat(request.tag<Any>()).isNull()

    // Alternate access APIs also work.

 */
@ElementTypesAreNonnullByDefault
abstract class GwtFuturesCatchingSpecialization {
  /*
   * In the GWT versions of the methods (below), every exceptionType parameter is required to be
   * Class<Throwable>. To handle only certain kinds of exceptions under GWT, you'll need to write
   * your own instanceof tests.
   */

 */
@Deprecated(since = "4.0.0")
public interface ModelBuilder {

    /**
     * Builds the effective model of the specified POM.
     *
     * @param request The model building request that holds the parameters, must not be {@code null}.
     * @return The result of the model building, never {@code null}.
     * @throws ModelBuildingException If the effective model could not be built.
     */

                param("env.HP_HOME_DIR", "/opt/honest-profiler")
            }
        }

        param("env.PERFORMANCE_DB_PASSWORD_TCAGENT", "%performance.db.password.tcagent%")
        param("additional.gradle.parameters", "")
    }

    val buildTypeThis = this
    steps {
        killProcessStep(buildTypeThis, KILL_ALL_GRADLE_PROCESSES, os)
        substDirOnWindows(os)
        gradleWrapper {

            "paths": {
                "/predict": {
                    "get": {
                        "summary": "Predict",
                        "operationId": "predict_predict_get",
                        "parameters": [
                            {
                                "required": True,
                                "schema": {"title": "X", "type": "number"},
                                "name": "x",