style: form
          explode: true
          schema:
            type: array
            items:
              type: string
            example: [name]
        - name: facet.field
          in: query
          description: Facet field name
          required: false
          style: form
          explode: true
          schema:
            type: array
            items:
              type: string

        // Given
        String filename = "\\\\server\\share\\file.txt";
        trans2GetDfsReferral = new Trans2GetDfsReferral(mockConfig, filename);

        // Set path field (inherited from parent)
        Field pathField = trans2GetDfsReferral.getClass().getSuperclass().getSuperclass().getDeclaredField("path");
        pathField.setAccessible(true);
        pathField.set(trans2GetDfsReferral, filename);

 * the License.
 */

package com.google.common.util.concurrent;

import static java.lang.annotation.ElementType.CONSTRUCTOR;
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;

import java.lang.annotation.Target;

/**

 * the License.
 */

package com.google.common.cache;

import static java.lang.annotation.ElementType.CONSTRUCTOR;
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;

import java.lang.annotation.Target;

/**

            {
                "type": "missing",
                "loc": ["body", "grant_type"],
                "msg": "Field required",
                "input": None,
            },
            {
                "type": "missing",
                "loc": ["body", "username"],
                "msg": "Field required",
                "input": None,
            },
            {
                "type": "missing",

        "detail": [
            {
                "loc": ["body", "name"],
                "input": {},
                "msg": "Field required",
                "type": "missing",
            },
            {
                "loc": ["body", "price"],
                "input": {},
                "msg": "Field required",
                "type": "missing",
            },
        ]
    }

{* ../../docs_src/separate_openapi_schemas/tutorial001_py310.py ln[1:15] hl[14] *}

...then the `description` field will **not be required**. Because it has a default value of `None`.

### Input Model in Docs { #input-model-in-docs }

You can confirm that in the docs, the `description` field doesn't have a **red asterisk**, it's not marked as required:

<div class="screenshot">

import static java.lang.annotation.ElementType.CONSTRUCTOR;
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

/**
 * Marks a dependency injection point for constructor, method, or field injection.
 * <p>
 * This annotation is used to identify injection points where the container should

        // Set max_recv field using reflection (default is 4280 in parent class)
        Field maxRecvField = DcerpcHandle.class.getDeclaredField("max_recv");
        maxRecvField.setAccessible(true);
        maxRecvField.set(handle, 4280);

        // Inject mocks using reflection
        Field pipeField = DcerpcPipeHandle.class.getDeclaredField("pipe");
        pipeField.setAccessible(true);

    @Override
    public String normalize(final String text, final String field, final String... langs) {
        if (text == null) {
            return null;
        }
        String tmp = text;
        for (final Normalizer normalizer : normalizers) {
            tmp = normalizer.normalize(tmp, field, langs);
            if (tmp == null) {
                return null;
            }
        }