* ThreadLocal; however, ThreadLocal is not well optimized for the case where the ThreadLocal is
   * non-static, and is initialized/removed frequently - this causes churn in the Thread specific
   * hashmaps. Using a static ThreadLocal to avoid that overhead would mean that different
   * ExecutionSequencer objects interfere with each other, which would be undesirable, in addition

    configSource:
      subscribedResources: []

    # The following is used to limit how long a sidecar can be connected
    # to a pilot. It balances out load across pilot instances at the cost of
    # increasing system churn.
    keepaliveMaxServerConnectionAge: 30m

    # Additional labels to apply to the deployment.
    deploymentLabels: {}

    ## Mesh config settings

    # Install the mesh config map, generated from values.yaml.

		{call: "Setresuid(0,0,0)", fn: func() error { return syscall.Setresuid(0, 0, 0) }, filter: "Uid:", expect: "\t0\t0\t0\t0"},
	}

	for i, v := range vs {
		// Generate some thread churn as we execute the tests.
		c := make(chan struct{})
		go killAThread(c)
		close(c)

		if err := v.fn(); err != nil {
			t.Errorf("[%d] %q failed: %v", i, v.call, err)
			continue
		}

// allows 'go mod tidy' to preserve a minor checksum-preservation bug
// (https://go.dev/issue/56222) for modules with 'go' versions between 1.17 and
// 1.20, preventing unnecessary go.sum churn and network access in those
// modules.
func importFromModules(ctx context.Context, path string, rs *Requirements, mg *ModuleGraph, skipModFile bool) (m module.Version, modroot, dir string, altMods []module.Version, err error) {

	)
	for _, root := range rs.rootModules {
		// If the selected version of the root is the same as what was already
		// listed in the go.mod file, retain it as a root (even if redundant) to
		// avoid unnecessary churn. (See https://golang.org/issue/34822.)
		//
		// We do this even for indirect requirements, since we don't know why they
		// were added and they could become direct at any time.

			// However, we didn't do so before Go 1.21, and the bug is relatively
			// minor, so we maintain the previous (buggy) behavior in 'go mod tidy' to
			// avoid introducing unnecessary churn.
			if keepPkgGoModSums {
				r := resolveReplacement(pkg.mod)
				keep[modkey(r)] = true
			}

			if rs.pruning == pruned && pkg.mod.Path != "" {

### Bug or Regression

		//
		// We don't actually rely on that invariant at the moment, but it may
		// improve efficiency somewhat and makes the behavior a bit easier to reason
		// about (by reducing churn on the flag bits of dependencies), and costs
		// essentially nothing (these atomic flag ops are essentially free compared
		// to scanning source code for imports).
		ld.applyPkgFlags(ctx, pkg, pkgInAll)
	}

Tất cả được dựa trên khai báo kiểu dữ liệu chuẩn của **Python 3.8** (cảm ơn Pydantic). Bạn không cần học cú pháp mới, chỉ cần biết chuẩn Python hiện đại.

Nếu bạn cần 2 phút để làm mới lại cách sử dụng các kiểu dữ liệu mới của Python (thậm chí nếu bạn không sử dụng FastAPI), xem hướng dẫn ngắn: [Kiểu dữ liệu Python](python-types.md){.internal-link target=_blank}.

Bạn viết chuẩn Python với kiểu dữ liệu như sau:

```Python

Bây giờ, bạn chỉ cần biết rằng `Annotated` tồn tại, và nó là tiêu chuẩn của Python. 😎


Sau đó, bạn sẽ thấy sự **mạnh mẽ** mà nó có thể làm.

!!! tip