# `Response` class

You can declare a parameter in a *path operation function* or dependency to be of type `Response` and then you can set data for the response like headers or cookies.

You can also use it directly to create an instance of it and return it from your *path operations*.

You can import it directly from `fastapi`:

```python
from fastapi import Response
```

from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel, Field

app = FastAPI()


class Item(BaseModel):
    name: str = Field(examples=["Foo"])
    description: Union[str, None] = Field(default=None, examples=["A very nice Item"])
    price: float = Field(examples=[35.4])
    tax: Union[float, None] = Field(default=None, examples=[3.2])


@app.put("/items/{item_id}")

package org.gradle.test;

public class JavaClassWithMethods {
    public JavaClassWithMethods(String value) {
    }

    /**
     * A method that returns String.
     */
    String stringMethod(String stringParam) {
        return "value";
    }

    /**
     * A method that returns void.
     */
    void voidMethod() {
    }

    /**
     * A method that returns a reference type.
     */

        .isEqualTo(new byte[] {(byte) 1, (byte) 0, (byte) 0});
  }

  public void testEnsureCapacity_fail() {
    assertThrows(IllegalArgumentException.class, () -> Bytes.ensureCapacity(ARRAY1, -1, 1));
    assertThrows(IllegalArgumentException.class, () -> Bytes.ensureCapacity(ARRAY1, 1, -1));
  }

  public void testToArray() {
    // need explicit type parameter to avoid javac warning!?

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 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.crawler.extractor.impl;

import java.util.regex.Pattern;

/**
 * Extracts text content from XML documents.
 */
public class XmlExtractor extends AbstractXmlExtractor {

    /**
     * Creates a new XmlExtractor instance.
     */
    public XmlExtractor() {
        super();
    }

    /**
     * Pattern for XML encoding.

import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

/**
 * {@link SAXParserFactoryUtil}のテストです。
 *
 * @author koichik
 */
public class SAXParserFactoryUtilTest extends TestCase {

    boolean included;

    /**
     * {@link SAXParserFactoryUtil#setXIncludeAware}のテストです。
     *
     * @throws Exception
     */

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.internal.smb2.multichannel;

/**
 * SMB2/SMB3 Multi-Channel capabilities and constants
 */
public final class Smb2ChannelCapabilities {

    private Smb2ChannelCapabilities() {
    }

    /**
     * Multi-channel specific capability flag
     */
    public static final int SMB2_GLOBAL_CAP_MULTI_CHANNEL = 0x00000008;

import java.util.Properties;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import jcifs.CIFSException;
import jcifs.Configuration;
import jcifs.config.PropertyConfiguration;

public class SmbComWriteAndXResponseTest {

    private Configuration config;

    @BeforeEach
    public void setUp() throws CIFSException {
        config = new PropertyConfiguration(new Properties());
    }

    /**

import okhttp3.dnsoverhttps.DnsRecordCodec.TYPE_AAAA
import okhttp3.dnsoverhttps.DnsRecordCodec.decodeAnswers
import okio.ByteString.Companion.decodeHex
import org.junit.jupiter.api.Test

class DnsRecordCodecTest {
  @Test
  fun testGoogleDotComEncoding() {
    val encoded = encodeQuery("google.com", TYPE_A)
    assertThat(encoded).isEqualTo("AAABAAABAAAAAAAABmdvb2dsZQNjb20AAAEAAQ")
  }