.Builder()
        .url(server.url("/"))
        .method("POST", requestBody1)
        .build()
    val response1 = client.newCall(request1).execute()
    assertThat(response1.code).isEqualTo(200)

    // Call 2: check for the absence of a deadline on the request body.
    val requestBody2: RequestBody =
      object : RequestBody() {
        override fun contentType(): MediaType = "text/plain".toMediaType()

    assertFailsWith<IOException> {
      call.execute()
    }
    assertThat(callRef.get()).isSameInstanceAs(call)
  }

  private fun uppercase(original: RequestBody?): RequestBody =
    object : RequestBody() {
      override fun contentType(): MediaType? = original!!.contentType()

      override fun contentLength(): Long = original!!.contentLength()

import okhttp3.EventRecorder
import okhttp3.MediaType
import okhttp3.OkHttpClient
import okhttp3.OkHttpClientTestRule
import okhttp3.Protocol.HTTP_1_1
import okhttp3.Request
import okhttp3.RequestBody
import okhttp3.SimpleProvider
import okhttp3.internal.http.CancelTest.CancelMode.CANCEL
import okhttp3.internal.http.CancelTest.CancelMode.INTERRUPT
import okhttp3.internal.http.CancelTest.ConnectionType.H2

import okhttp3.internal.url.percentDecode
import okio.Buffer
import okio.BufferedSink

class FormBody internal constructor(
  encodedNames: List<String>,
  encodedValues: List<String>,
) : RequestBody() {
  private val encodedNames: List<String> = encodedNames.toImmutableList()
  private val encodedValues: List<String> = encodedValues.toImmutableList()

  /** The number of key-value pairs in this form-encoded body. */

import okhttp3.EventRecorder
import okhttp3.Headers.Companion.headersOf
import okhttp3.OkHttpClientTestRule
import okhttp3.Protocol
import okhttp3.RecordingHostnameVerifier
import okhttp3.Request
import okhttp3.RequestBody
import okhttp3.RequestBody.Companion.toRequestBody
import okhttp3.internal.duplex.MockSocketHandler
import okhttp3.testing.PlatformRule
import okio.ProtocolException
import okio.buffer
import okio.use

                            },
                        },
                        "summary": "Update Item",
                        "operationId": "update_item_items__item_id__put",
                        "requestBody": {
                            "content": {
                                "application/json": {
                                    "schema": {
                                        "$ref": "#/components/schemas/Item",

 *  New: `Headers.of(Map)` creates headers from a Map.


## Version 2.2.0

_2014-12-30_

 *  **`RequestBody.contentLength()` now throws `IOException`.**
    This is a source-incompatible change. If you have code that calls
    `RequestBody.contentLength()`, your compile will break with this
    update. The change is binary-compatible, however: code compiled

                            },
                        },
                        "summary": "Login",
                        "operationId": "login_login_post",
                        "requestBody": {
                            "content": {
                                "application/x-www-form-urlencoded": {
                                    "schema": {

                            },
                        },
                        "summary": "Update Item",
                        "operationId": "update_item_items__item_id__put",
                        "requestBody": {
                            "content": {
                                "application/json": {
                                    "schema": {
                                        "$ref": "#/components/schemas/Item",

OpenAPI 명세에서는 이를 [Operation Object](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.0.3.md#operation-object)라고 부릅니다.

///

여기에는 *경로 처리*에 대한 모든 정보가 있으며, 자동 문서를 생성하는 데 사용됩니다.

`tags`, `parameters`, `requestBody`, `responses` 등이 포함됩니다.

이 *경로 처리* 전용 OpenAPI 스키마는 보통 **FastAPI**가 자동으로 생성하지만, 확장할 수도 있습니다.

/// tip | 팁

이는 저수준 확장 지점입니다.

추가 응답만 선언하면 된다면, 더 편리한 방법은 [OpenAPI의 추가 응답](additional-responses.md)을 사용하는 것입니다.