.formUtils.addValidator({name:"complexity",validatorFunction:function(b,c,d,e){var f=c.valAttr("require-uc-letter")||"0",g=c.valAttr("require-lc-letter")||"0",h=c.valAttr("require-special-char")||"0",i=c.valAttr("require-numeral")||"0",j=c.valAttr("require-length")||"0",k={"uc-letter":{pattern:"^(?=(?:.*[A-Z]){"+f+",}).+",numRequired:f,dialogEnd:e.passwordComplexityUppercaseInfo},"lc-letter":{pattern:"^(?=(?:.*[a-z]){"+g+",}).+",numRequired:g,dialogEnd:e.passwordComplexityLowercaseInfo},"special...

# Reference

Here's the reference or code API, the classes, functions, parameters, attributes, and
all the FastAPI parts you can use in your applications.

If you want to **learn FastAPI** you are much better off reading the

import org.apache.maven.api.Language;
import org.apache.maven.api.PathType;
import org.apache.maven.api.Type;
import org.apache.maven.repository.internal.artifact.MavenArtifactProperties;
import org.eclipse.aether.artifact.ArtifactProperties;
import org.eclipse.aether.artifact.ArtifactType;

import static java.util.Objects.requireNonNull;

/**
 * Default implementation of {@link Type} and Resolver {@link ArtifactType}.
 *
 * @since 4.0.0

  public @Nullable V put(K key, @ParametricNullness V value) {
    return super.put(key, value);
  }

  @CanIgnoreReturnValue
  @Override
  @SuppressWarnings("RedundantOverride") // b/192446478: RedundantOverride ignores some annotations.
  // TODO(b/192446998): Remove this override after tools understand nullness better.

import java.io.File;
import java.lang.reflect.Field;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.impl.resolver.DefaultArtifactDescriptorReader;
import org.eclipse.aether.impl.ArtifactDescriptorReader;
import org.eclipse.aether.impl.ArtifactResolver;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;

Zuerst einmal, Sie können `Path`-, `Query`- und Requestbody-Parameter-Deklarationen frei mischen und **FastAPI** wird wissen, was zu tun ist.

Und Sie können auch Body-Parameter als optional kennzeichnen, indem Sie den Defaultwert auf `None` setzen:

{* ../../docs_src/body_multiple_params/tutorial001_an_py310.py hl[18:20] *}

/// note | Hinweis

This translation was made by AI guided by humans. 🤝

It could have mistakes of misunderstanding the original meaning, or looking unnatural, etc. 🤖

You can improve this translation by [helping us guide the AI LLM better](https://fastapi.tiangolo.com/contributing/#translations).

[English version](ENGLISH_VERSION_URL)

You could also create a `JSONResponse` directly and return it.

/// tip

You will normally have much better performance using a [Response Model](../tutorial/response-model.md) than returning a `JSONResponse` directly, as that way it serializes the data using Pydantic, in Rust.

///

## Return a `Response` { #return-a-response }

import org.apache.maven.api.plugin.descriptor.lifecycle.Lifecycle;
import org.apache.maven.api.xml.XmlNode;
import org.apache.maven.impl.DefaultNode;
import org.codehaus.plexus.util.xml.Xpp3Dom;
import org.eclipse.aether.graph.DependencyNode;

public class DefaultMojoExecution implements MojoExecution {
    private final InternalMavenSession session;
    private final org.apache.maven.plugin.MojoExecution delegate;

            assertThrows(ClassCastException.class, () -> {
                referralData.unwrap(IncompatibleReferralData.class);
            });
        }
    }

    @Nested
    @DisplayName("Property Getter and Setter Tests")
    class PropertyTests {

        @Test
        @DisplayName("Should get and set domain")
        void testDomain() {
            assertNull(referralData.getDomain());