به کمک Pydantic بدنه درخواست را با <abbr title="Type">انواع</abbr> استاندارد پایتون تعریف کنید.

```Python hl_lines="4  9-12  25-27"
from typing import Optional

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float
    is_offer: Union[bool, None] = None


@app.get("/")

package callbacks

import (
	"gorm.io/gorm"
)

func RawExec(db *gorm.DB) {
	if db.Error == nil && !db.DryRun {
		result, err := db.Statement.ConnPool.ExecContext(db.Statement.Context, db.Statement.SQL.String(), db.Statement.Vars...)
		if err != nil {
			db.AddError(err)
			return
		}

		db.RowsAffected, _ = result.RowsAffected()

		if db.Statement.Result != nil {
			db.Statement.Result.Result = result

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.tls.internal.der

import okio.ByteString

/**
 * Like a [ByteString], but whose bits are not necessarily a strict multiple of 8.
 */
internal data class BitString(
  val byteString: ByteString,
  /** 0-7 unused bits in the last byte. */

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.duplicatehost;

import org.codelibs.fess.app.web.api.admin.BaseSearchBody;

/**
 * Search request body for duplicate host administration.
 * Extends BaseSearchBody with duplicate host-specific search parameters.
 */

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.fileconfig;

import org.codelibs.fess.app.web.api.admin.BaseSearchBody;

/**
 * Search request body for file crawling configuration administration API.
 */
public class SearchBody extends BaseSearchBody {

    /**

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.admin.dict.protwords;

import org.lastaflute.web.validation.Required;

/**
 * The download form for protected words dictionary.
 * This form is used for downloading protected words dictionary files from the admin interface.
 *
 */

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.dict.protwords;

import org.codelibs.fess.app.web.admin.dict.protwords.EditForm;

/**
 * Request body class for protected words dictionary edit operations in the admin REST API.

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin.dict.stemmeroverride;

import org.codelibs.fess.app.web.admin.dict.stemmeroverride.EditForm;

/**
 * Request body class for stemmer override dictionary edit operations in the admin REST API.

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect.testing.testers;

import com.google.common.annotations.GwtCompatible;

/** Exception classes for use in tests. */
@GwtCompatible
final class TestExceptions {
  static final class SomeError extends Error {}

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.core.exception;

import static org.codelibs.core.collection.ArrayUtil.asArray;

/**
 * Exception thrown when an argument is null.
 *
 * Intended to be used instead of throwing {@link NullPointerException}.
 *
 * @author wyukawa
 */