```Python hl_lines="3  5-6"
{
    "name": "Baz",
    "description": None,
    "price": 50.2,
    "tax": 10.5,
    "tags": []
}
```

dann ist FastAPI klug genug (tatsächlich ist Pydantic klug genug) zu erkennen, dass, obwohl `description`, `tax`, und `tags` die gleichen Werte haben wie ihre Defaultwerte, sie explizit gesetzt wurden (statt dass sie von den Defaultwerten genommen wurden).

// array position can be safely represented inside a JSON string, embedded
// inside of HTML <script> tags, without any additional escaping.
//
// All values are true except for the ASCII control characters (0-31), the
// double quote ("), the backslash character ("\"), HTML opening and closing
// tags ("<" and ">"), and the ampersand ("&").
var htmlSafeSet = [utf8.RuneSelf]bool{
	' ':      true,
	'!':      true,

	lifecycleConfig        *lifecycle.Lifecycle
	objectLockConfig       *objectlock.Config
	versioningConfig       *versioning.Versioning
	sseConfig              *bucketsse.BucketSSEConfig
	taggingConfig          *tags.Tags
	quotaConfig            *madmin.BucketQuota
	replicationConfig      *replication.Config
	bucketTargetConfig     *madmin.BucketTargets
	bucketTargetConfigMeta map[string]string
}

    }

    val sink = sink()

    // Write the tagClass, tag, and constructed bit. This takes 1 byte if tag is less than 31.
    if (tag < 31) {
      val byte0 = tagClass or constructedBit or tag.toInt()
      sink.writeByte(byte0)
    } else {
      val byte0 = tagClass or constructedBit or 0b0001_1111
      sink.writeByte(byte0)
      writeVariableLengthLong(tag)
    }

import java.util.HashMap;
import java.util.Map;

import org.codelibs.fess.it.CrudTestBase;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;

import io.restassured.path.json.JsonPath;
import io.restassured.response.Response;

@Tag("it")
public class BadWordTests extends CrudTestBase {

    private static final String NAME_PREFIX = "badWordTest_";

import java.util.HashMap;
import java.util.Map;

import org.codelibs.fess.it.CrudTestBase;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;

import io.restassured.path.json.JsonPath;
import io.restassured.response.Response;

@Tag("it")
public class ElevateWordTests extends CrudTestBase {

    private static final String NAME_PREFIX = "elevateWordTest_";

import java.util.Map;

import org.codelibs.fess.it.CrudTestBase;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;

import io.restassured.path.json.JsonPath;

@Tag("it")
public class FileAuthTests extends CrudTestBase {

    private static final String NAME_PREFIX = "fileAuthTest_";

				Type:    relField.StructField.Type,
				Tag: removeSettingFromTag(appendSettingFromTag(relField.StructField.Tag, "primaryKey"),
					"column", "autoincrement", "index", "unique", "uniqueindex"),
			})
		}
	}

	joinTableFields = append(joinTableFields, reflect.StructField{
		Name: cases.Title(language.Und, cases.NoLower).String(schema.Name) + field.Name,
		Type: schema.ModelType,
		Tag:  `gorm:"-"`,
	})

데이터가 ID가 `baz`인 항목처럼 기본값과 동일한 값을 갖는다면:

```Python hl_lines="3  5-6"
{
    "name": "Baz",
    "description": None,
    "price": 50.2,
    "tax": 10.5,
    "tags": []
}
```

FastAPI는 충분히 똑똑해서(사실, Pydantic이 충분히 똑똑합니다) `description`, `tax`, `tags`가 기본값과 동일하더라도, 기본값에서 가져온 것이 아니라 명시적으로 설정되었다는 것을 알아냅니다.

그래서 JSON 응답에 포함됩니다.

/// tip | 팁

기본값은 `None`뿐만 아니라 어떤 것이든 될 수 있습니다.

import org.junit.jupiter.api.AfterAll;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;

import io.restassured.RestAssured;
import io.restassured.path.json.JsonPath;
import io.restassured.response.Response;

/**
 * Integration tests for the Labels API (/api/v1/labels)
 */
@Tag("it")
public class LabelsApiTests extends ITBase {