"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;
            }
        }

                }
            }

        } else if (member instanceof JApiField) {

            JApiField field = (JApiField) member
            CtField oldField = field.oldFieldOptional.get()
            CtField newField = field.newFieldOptional.get()

            def oldNullability = nullabilityOf(oldField)
            def newNullability = nullabilityOf(newField)

    }

    // Helper methods
    private void setPrivateField(Object target, String fieldName, Object value) throws Exception {
        Field field = findField(target.getClass(), fieldName);
        field.setAccessible(true);
        field.set(target, value);
    }

    private Field findField(Class<?> clazz, String fieldName) {
        while (clazz != null) {
            try {

		// Test case with invalid credential field.
		{
			inputV4AuthStr:    signV4Algorithm + " Cred=,a,b",
			expectedAuthField: signValues{},
			expectedErrCode:   ErrMissingCredTag,
		},
		// Test case - 5.
		// Auth field with missing "SigHeaderTag",ErrMissingSignHeadersTag expected.
		// A valid credential is generated.
		// Test case with invalid credential field.
		{
			inputV4AuthStr: signV4Algorithm +

    extends AggregateFuture<V, C> {
  /*
   * We access this field racily but safely. For discussion of a similar situation, see the comments
   * on the fields of TimeoutFuture. This field is slightly different from the fields discussed
   * there: cancel() never reads this field, only writes to it. That makes the race here completely
   * harmless, rather than just 99.99% harmless.
   */

    extends AggregateFuture<V, C> {
  /*
   * We access this field racily but safely. For discussion of a similar situation, see the comments
   * on the fields of TimeoutFuture. This field is slightly different from the fields discussed
   * there: cancel() never reads this field, only writes to it. That makes the race here completely
   * harmless, rather than just 99.99% harmless.
   */