signalledCallback = true
          responseCallback.onResponse(this@RealCall, response)
        } catch (e: IOException) {
          if (signalledCallback) {
            // Do not signal the callback twice!
            Platform.get().log("Callback failure for ${toLoggableString()}", Platform.INFO, e)
          } else {
            responseCallback.onFailure(this@RealCall, e)
          }
        } catch (t: Throwable) {

				skipReplicate = obj.IsDeleteMarker && s3Type
			}
			if skipReplicate {
				continue
			}

			wk.Take()
			go func() {
				defer wk.Give()
				stopFn := globalBatchJobsMetrics.trace(batchJobMetricReplication, job.ID, attempts)
				success := true
				if err := r.ReplicateFromSource(ctx, api, core, oi, retry); err != nil {
					// object must be deleted concurrently, allow these failures but do not count them

Мы превращаем этот итерируемый объект в обычный `list` через `list(data.items())`.

Затем с `random.choice()` можно получить **случайное значение** из списка — то есть кортеж вида `(id, name)`. Это будет что‑то вроде `("imdb-tt0371724", "The Hitchhiker's Guide to the Galaxy")`.

              [INFO] Validating units:
              [INFO]    Ignored 53 units with compilation errors in first pass.
              [INFO] Compile with -strict or with -logLevel set to TRACE or DEBUG to see all errors.

            Turning up the log level, we see that GWT is trying to compile classes from other
            packages, like RangeTest. The reason for this is that GWT doesn't distinguish between

          "cool.se",
          "cool\uFF61fr", // Alternate dot character
          "foo.bar.google.com",
          "google.Co.uK",
          "google.com",
          "home.netscape.com",
          "it-trace.ch",
          "jobs.kt.com.",
          "jprs.co.jp",
          "kt.co",
          "ledger-enquirer.com",
          "members.blah.nl.",
          "pvt.k12.ca.us",
          "site.ac.jp",

* 在 [PyCharm](https://www.jetbrains.com/pycharm/) 中:

![editor support](https://fastapi.tiangolo.com/img/pycharm-completion.png)

你将能进行代码补全，这是在之前你可能曾认为不可能的事。例如，在来自请求 JSON 体（可能是嵌套的）中的键 `price`。

不会再输错键名，来回翻看文档，或者来回滚动寻找你最后使用的 `username` 或者 `user_name`。

### 简洁 { #short }

任何类型都有合理的**默认值**，任何和地方都有可选配置。所有的参数被微调，来满足你的需求，定义成你需要的 API。

但是默认情况下，一切都能**“顺利工作”**。

### 验证 { #validation }

 * host platform (like Android). In July 2018 Android had 134 trusted root certificates for its HTTP
 * clients to trust.
 *
 * For example, in order to establish a secure connection to `https://www.squareup.com/`,
 * these three certificates are used.
 *
 * ```
 * www.squareup.com certificate:
 *
 * Common Name: www.squareup.com
 * Subject Alternative Names: www.squareup.com, squareup.com, account.squareup.com...

//
//	For example: ceb8853ddc5086cc4ab9e149f8f09c88-5
//
// However, this scheme is only used for multipart objects that are
// not encrypted.
//
// # Server-side Encryption
//
// S3 specifies three types of server-side-encryption - SSE-C, SSE-S3
// and SSE-KMS - with different semantics w.r.t. ETags.
// In case of SSE-S3, the ETag of an object is computed the same as

            final int n = readBytesWireFormat(buffer, bufferIndex);
            if (n != this.byteCount && log.isTraceEnabled()) {
                log.trace("Short read, have " + n + ", want " + this.byteCount);
            }
            bufferIndex += this.byteCount;
        }

        /*
         * if there is an andx and it itself is an andx then just recur by

- `context_values`: are values like the bucket and object name and other information which should be cryptographically bound to the KEK.

To summarize for any encrypted object there exists (at least) three different keys:

- [OEK](#oek): A secret and unique key used to encrypted the object, stored in an encrypted form as part of the object metadata and only loaded to RAM in plaintext during en/decrypting the object.