But remember that when you import `Query`, `Path`, `Header`, and others from `fastapi`, those are actually functions that return special classes.

///

/// info

To declare headers, you need to use `Header`, because otherwise the parameters would be interpreted as query parameters.

///

## Automatic conversion { #automatic-conversion }

     */
    String getClassifier();

    String getPackaging();

    boolean isIncludesDependencies();

    String getLanguage();

    /**
     * Specifies if the artifact contains java classes and can be added to the classpath.
     * Whether the artifact should be added to the classpath depends on other
     * dependency properties.
     *
     * @return if the artifact can be added to the class path

Lembre-se que quando você importa `Query`, `Path`, e outros de `fastapi`, esse são na realidade funções que retornam classes especiais.

///

/// tip | Dica

        // Guard to ensure test remains valid if constants change in future
        for (int c : WinError.WINERR_CODES) {
            assertNotEquals(unknownCode, c, "Chosen unknown code unexpectedly clashes with a known code");
        }
        assertTrue(lookupMessage(unknownCode).isEmpty());
    }

    @Test
    @DisplayName("Codes: all non-negative and unique")
    void codes_are_non_negative_and_unique() {

import java.lang.reflect.Field;
import java.util.Collection;
import java.util.Map;
import org.jspecify.annotations.Nullable;

/**
 * Provides static methods for serializing collection classes.
 *
 * <p>This class assists the implementation of collection classes. Do not use this class to
 * serialize collections that are defined elsewhere.
 *
 * @author Jared Levy
 */
@GwtIncompatible
@J2ktIncompatible
final class Serialization {

      }
    }

    return Iterators.concat(subscriberIterators.iterator());
  }

  /**
   * A thread-safe cache that contains the mapping from each class to all methods in that class and
   * all super-classes, that are annotated with {@code @Subscribe}. The cache is shared across all
   * instances of this class; this greatly improves performance if multiple EventBus instances are

import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.Map;
import java.util.Set;

/**
 * Optional features of classes derived from {@code Map}.
 *
 * @author George van den Driessche
 */
@SuppressWarnings("rawtypes") // maybe avoidable if we rework the whole package?
@GwtCompatible
public enum MapFeature implements Feature<Map> {

If your database is stolen, the thief won't have your users' plaintext passwords, only the hashes.

So, the thief won't be able to try to use that password in another system (as many users use the same password everywhere, this would be dangerous).

## Install `passlib` { #install-passlib }

PassLib is a great Python package to handle password hashes.

It supports many secure hashing algorithms and utilities to work with them.

* `Optional`
* ...and others.

////

//// tab | Python 3.8+

* `List`
* `Tuple`
* `Set`
* `Dict`
* `Union`
* `Optional`
* ...and others.

////

### Classes as types { #classes-as-types }

You can also declare a class as the type of a variable.

Let's say you have a class `Person`, with a name:

{* ../../docs_src/python_types/tutorial010.py hl[1:3] *}

        TestCorsHandler handlerWithSlash = new TestCorsHandler("handler-with-slash");
        TestCorsHandler handlerWithoutSlash = new TestCorsHandler("handler-without-slash");

        // Execute
        corsHandlerFactory.add(originWithSlash, handlerWithSlash);
        corsHandlerFactory.add(originWithoutSlash, handlerWithoutSlash);

        // Verify - trailing slash matters