if _, err := zip.ReadAt(d, zip.Size()-int64(len(d))); err != nil {
		t.Fatalf("ReadAt: %v", err)
	}

	sigOff := findSignatureInBlock(d)
	if sigOff == -1 {
		t.Errorf("failed to find signature in block")
		return false
	}

	dirOff, err := findDirectory64End(zip, zip.Size()-int64(len(d))+int64(sigOff))
	if err != nil {
		t.Fatalf("findDirectory64End: %v", err)
	}
	if dirOff == -1 {
		return false

	plkctx, err := partIDLock.GetLock(ctx, globalOperationTimeout)
	if err != nil {
		return PartInfo{}, err
	}

	ctx = plkctx.Context()
	defer partIDLock.Unlock(plkctx)

	// Read lock for upload id, only held while reading the upload metadata.
	uploadIDRLock := er.NewNSLock(bucket, pathJoin(object, uploadID))
	rlkctx, err := uploadIDRLock.GetRLock(ctx, globalOperationTimeout)
	if err != nil {

pkg encoding/pem, func Decode([]uint8) (*Block, []uint8)
pkg encoding/pem, func Encode(io.Writer, *Block) error
pkg encoding/pem, func EncodeToMemory(*Block) []uint8
pkg encoding/pem, type Block struct
pkg encoding/pem, type Block struct, Bytes []uint8
pkg encoding/pem, type Block struct, Headers map[string]string
pkg encoding/pem, type Block struct, Type string
pkg encoding/xml, const Header ideal-string

	// There is flow control in both directions.
	StreamHandler struct {
		// Handle an incoming request. Initial payload is sent.
		// Additional input packets (if any) are streamed to request.
		// Upstream will block when request channel is full.
		// Response packets can be sent at any time.
		// Any non-nil error sent as response means no more responses are sent.
		Handle StreamHandlerFn

		// Subroute for handler.

  static std::unordered_map<std::string, void*>* loaded_libs =
      new std::unordered_map<std::string, void*>();
  tensorflow::Env* env = tensorflow::Env::Default();
  {
    tensorflow::mutex_lock lock(mu);
    auto it = loaded_libs->find(library_filename);
    if (it != loaded_libs->end()) {
      lib_handle->lib_handle = it->second;
    } else {
      status->status =

When you declare a *path operation function* with normal `def` instead of `async def`, it is run in an external threadpool that is then awaited, instead of being called directly (as it would block the server).

		},
	}

	for i, c := range cases {
		t.Run(c.file, func(t *testing.T) {
			var err error
			var record sql.Record
			var result bytes.Buffer
			input := openTestFile(t, c.file)
			// Get above block size.
			input = append(input, input...)
			args := ReaderArgs{
				FileHeaderInfo:             use,
				RecordDelimiter:            c.recordDelimiter,
				FieldDelimiter:             c.fieldDelimiter,

pkg crypto/cipher, func NewGCMWithTagSize(Block, int) (AEAD, error)
pkg crypto/rsa, method (*PrivateKey) Size() int
pkg crypto/rsa, method (*PublicKey) Size() int
pkg crypto/tls, method (*ConnectionState) ExportKeyingMaterial(string, []uint8, int) ([]uint8, error)
pkg database/sql, method (IsolationLevel) String() string
pkg database/sql, type DBStats struct, Idle int
pkg database/sql, type DBStats struct, InUse int

pkg sync, method (*Pool) Put(interface{})
pkg sync, type Pool struct
pkg sync, type Pool struct, New func() interface{}
pkg syscall (darwin-386), func FcntlFlock(uintptr, int, *Flock_t) error
pkg syscall (darwin-386), func Mlock([]uint8) error
pkg syscall (darwin-386), func Mlockall(int) error
pkg syscall (darwin-386), func Mprotect([]uint8, int) error
pkg syscall (darwin-386), func Munlock([]uint8) error

```

1. これは最初のステージで、`requirements-stage`と名付けられます
2. `/tmp` を現在の作業ディレクトリに設定します
    ここで `requirements.txt` というファイルを生成します。

3. このDockerステージにPoetryをインストールします

4. pyproject.toml`と`poetry.lock`ファイルを`/tmp` ディレクトリにコピーします

    `./poetry.lock*`（末尾に`*`）を使用するため、そのファイルがまだ利用できない場合でもクラッシュすることはないです。
5. requirements.txt`ファイルを生成します

6. これは最後のステージであり、ここにあるものはすべて最終的なコンテナ・イメージに保存されます
7. 現在の作業ディレクトリを `/code` に設定します