* cancelled without a call to {@code cancel}, such as by calling {@code
   * setFuture(cancelledFuture)}.
   *
   * <p>Beware of completing a future while holding a lock. Its listeners may do slow work or
   * acquire other locks, risking deadlocks.
   */
  @CanIgnoreReturnValue
  @Override
  public boolean cancel(boolean mayInterruptIfRunning) {
    Object localValue = value;
    boolean rValue = false;

type IAMStorageAPI interface {
	// The role of the read-write lock is to prevent go routines from
	// concurrently reading and writing the IAM storage. The (r)lock()
	// functions return the iamCache. The cache can be safely written to
	// only when returned by `lock()`.
	lock() *iamCache
	unlock()
	rlock() *iamCache
	runlock()
	getUsersSysType() UsersSysType

	defer func() {
		if unlockOnDefer {
			nsUnlocker()
		}
	}()

	// Acquire lock
	if !opts.NoLock {
		lock := z.NewNSLock(bucket, object)
		lkctx, err := lock.GetRLock(ctx, globalOperationTimeout)
		if err != nil {
			return nil, err
		}
		ctx = lkctx.Context()
		nsUnlocker = func() { lock.RUnlock(lkctx) }
		unlockOnDefer = true
	}

	checkPrecondFn := opts.CheckPrecondFn

import okhttp3.internal.EMPTY_BYTE_ARRAY
import okhttp3.internal.EMPTY_HEADERS
import okhttp3.internal.concurrent.TaskFaker
import okhttp3.internal.concurrent.TaskRunner
import okhttp3.internal.connection.Locks.withLock
import okhttp3.internal.notifyAll
import okhttp3.internal.wait
import okio.AsyncTimeout
import okio.Buffer
import okio.BufferedSource
import okio.Source
import okio.buffer

   * of reads may not be immediately reflected on the algorithm's data structures. These structures
   * are guarded by a lock and operations are applied in batches to avoid lock contention. The
   * penalty of applying the batches is spread across threads so that the amortized cost is slightly
   * higher than performing just the operation without enforcing the capacity constraint.

Yuri Schimke <******@****.***> 1690028931 +0100

			nsUnlocker()
		}
	}()

	// Acquire lock
	if !opts.NoLock {
		lock := er.NewNSLock(bucket, object)
		lkctx, err := lock.GetRLock(ctx, globalOperationTimeout)
		if err != nil {
			return nil, err
		}
		ctx = lkctx.Context()

		// Release lock when the metadata is verified, and reader
		// is ready to be read.
		//
		// This is possible to be lock free because

	ErrObjectLockConfigurationNotFound: {
		Code:           "ObjectLockConfigurationNotFoundError",
		Description:    "Object Lock configuration does not exist for this bucket",
		HTTPStatusCode: http.StatusNotFound,
	},
	ErrObjectLockConfigurationNotAllowed: {
		Code:           "InvalidBucketState",
		Description:    "Object Lock configuration cannot be enabled on existing buckets",
		HTTPStatusCode: http.StatusConflict,
	},

## Version 3.1.2

_2016-02-10_

 *  Fix: Don’t crash when finding the trust manager on Robolectric. We attempted
    to detect the host platform and got confused because Robolectric looks like
    Android but isn’t!
 *  Fix: Change `CertificatePinner` to skip sanitizing the certificate chain
    when no certificates were pinned. This avoids an SSL failure in insecure

    В ней будет создан файл `requirements.txt`

3. На этом шаге установите Poetry.

4. Скопируйте файлы `pyproject.toml` и `poetry.lock` в директорию `/tmp`.

    Поскольку название файла написано как `./poetry.lock*` (с `*` в конце), то ничего не сломается, если такой файл не будет найден.

5. Создайте файл `requirements.txt`.