Including how to handle lifespan state that can be used in other areas of your code.

///

## Sub Applications

			return
		}
	}

	// Validate table name
	err = validateTableName(selectAST.From)
	if err != nil {
		return
	}

	// Analyze main select expression
	stmt.selectQProp = selectAST.Expression.analyze(&selectAST)
	err = stmt.selectQProp.err
	if err != nil {
		err = errQueryAnalysisFailure(err)
	}

	// Set table alias

package dsync

import (
	"context"
	"fmt"
	"runtime"
	"sync/atomic"
	"testing"
	"time"
)

const (
	id     = "1234-5678"
	source = "main.go"
)

func testSimpleWriteLock(t *testing.T, duration time.Duration) (locked bool) {
	drwm1 := NewDRWMutex(ds, "simplelock")
	ctx1, cancel1 := context.WithCancel(context.Background())

**FastAPI** provides the same `starlette.responses` as `fastapi.responses` just as a convenience for you, the developer. But most of the available responses come directly from Starlette.

///

### `Response`

The main `Response` class, all the other responses inherit from it.

You can return it directly.

It accepts the following parameters:

* `content` - A `str` or `bytes`.
* `status_code` - An `int` HTTP status code.

// additional allocation tweaks reproduced using GODEBUG=allocfreetrace=1
// original file https://github.com/golang-jwt/jwt/blob/main/parser.go
// borrowed under MIT License https://github.com/golang-jwt/jwt/blob/main/LICENSE

import (
	"bytes"
	"crypto"
	"crypto/hmac"
	"encoding/base64"
	"errors"
	"fmt"
	"hash"
	"sync"
	"time"

	"github.com/buger/jsonparser"

				writeErrorResponse(r.Context(), w, toAPIError(r.Context(), err), r.URL)
			}
			return
		}
	}

	if globalEtcdClient != nil {
		// Borrowed from
		// https://github.com/etcd-io/etcd/blob/main/etcdctl/ctlv3/command/ep_command.go#L118
		ctx, cancel := context.WithTimeout(r.Context(), defaultContextTimeout)
		defer cancel()
		if _, err := globalEtcdClient.Get(ctx, "health"); err != nil {

          <basedir>${project.basedir}/../../api/maven-api-model</basedir>
          <velocityBasedir>${project.basedir}/../../src/mdo</velocityBasedir>
          <version>4.1.0</version>
          <models>
            <model>src/main/mdo/maven.mdo</model>
          </models>
          <params>
            <param>forcedIOModelVersion=4.0.0</param>
            <param>packageModelV3=org.apache.maven.model</param>

以下の様な画面になります:

<img src="/img/tutorial/debugging/image01.png">

---

Pycharmを使用する場合、次のことが可能です:

* 「実行」メニューをオープン。
* オプション「デバッグ...」を選択。
* 次にコンテキストメニューが表示される。
* デバッグするファイル (ここでは `main.py`) を選択。

すると、**FastAPI** コードでサーバーが起動され、ブレークポイントで停止したりするでしょう。

以下の様な画面になります:

## Do not Separate Schemas

Now, there are some cases where you might want to have the **same schema for input and output**.

Probably the main use case for this is if you already have some autogenerated client code/SDKs and you don't want to update all the autogenerated client code/SDKs yet, you probably will want to do it at some point, but maybe not right now.

        try (ResponseBody body = response.body()) {
          // Consume and discard the response body.
          body.source().readByteString();
        }
      }
    });
  }

  public static void main(String... args) throws Exception {
    new PrintEvents().run();
  }

  private static final class PrintingEventListener extends EventListener {
    private static final Factory FACTORY = new Factory() {