t.Errorf("stat of open %q file and stat of %q should be the same", path, path)
	}

	if params.isLink {
		if os.SameFile(sfi2, lsfi) {
			t.Errorf("stat of opened %q file and lstat of %q should not be the same", path, path)
		}
	} else {
		if !os.SameFile(sfi2, lsfi) {
			t.Errorf("stat of opened %q file and lstat of %q should be the same", path, path)
		}
	}

	parentdir, base := filepath.Split(path)

        // withFileLock prevents other processes from extracting into the expandedDir at the same time
        // but multiple threads in this process could still try to extract into the same directory.
        cache.withFileLock(() -> {
            // guardByKey prevents multiple threads in this process from extracting into the same directory at the same time.
            guard.guardByKey(expandedDir, () -> {
                action.run();

apiVersion: release-notes/v2
kind: bug-fix
area: traffic-management
issue:
  - 49489
releaseNotes:
  - |

query_or_cookie_extractor(["query_or_cookie_extractor"])

read_query["/items/"]

query_extractor --> query_or_cookie_extractor --> read_query
```

## Using the same dependency multiple times

If one of your dependencies is declared multiple times for the same *path operation*, for example, multiple dependencies have a common sub-dependency, **FastAPI** will know to call that sub-dependency only once per request.

// a named type remain the same as long as the same source and AddMethod calls
// are presented to the type checker in the same order (go.dev/issue/61298).
func TestMethodOrdering(t *testing.T) {
	const src = `
package p

type T struct{}

func (T) a() {}
func (T) c() {}
func (T) b() {}
`
	// should get the same method order each time
	var methods []string

# Path Parameters and Numeric Validations

In the same way that you can declare more validations and metadata for query parameters with `Query`, you can declare the same type of validations and metadata for path parameters with `Path`.

## Import Path

First, import `Path` from `fastapi`, and import `Annotated`:

=== "Python 3.10+"

    ```Python hl_lines="1  3"
    {!> ../../../docs_src/path_params_numeric_validations/tutorial001_an_py310.py!}
    ```

# Request Forms and Files

You can define files and form fields at the same time using `File` and `Form`.

!!! info
    To receive uploaded files and/or form data, first install <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

    E.g. `pip install python-multipart`.

## Import `File` and `Form`

=== "Python 3.9+"

    ```Python hl_lines="3"

// CHECK-LABEL: func @__forward_call_369
// CHECK-SAME: ([[in_chain:%.*]]: !tfrt.chain
// CHECK-SAME: [[arg1:%.*]]: !tfrt_fallback.tf_tensor {tf._user_specified_name = "inputs"},
// CHECK-SAME: [[arg2:%.*]]: !tfrt_fallback.tf_tensor, [[arg3:%.*]]: !tfrt_fallback.tf_tensor, [[arg4:%.*]]: !tfrt_fallback.tf_tensor, [[arg5:%.*]]: !tfrt_fallback.tf_tensor)
// CHECK-SAME: -> (!tfrt.chain
// CHECK: [[o1:%.*]] = tfrt_fallback_async.const_dense_tensor

//go:build !js

package http

import _ "unsafe" // for linkname

// RoundTrip should be an internal detail,
// but widely used packages access it using linkname.
// Notable members of the hall of shame include:
//   - github.com/erda-project/erda-infra
//
// Do not remove or change the type signature.
// See go.dev/issue/67401.
//
//go:linkname badRoundTrip net/http.(*Transport).RoundTrip

module {
  // CHECK-LABEL: func.func @main
  func.func @main(%arg0: tensor<1x1024xf32>) -> tensor<1x3xf32> {
    // CHECK: call @composite_dot_general_fn_1
    // CHECK-SAME: (tensor<1x1024xf32>, tensor<1024x3xf32>) -> tensor<1x3xf32>
    // CHECK-NOT: tf.XlaCallModule
    %0 = "tf.Const"() <{value = dense<0.5> : tensor<1024x3xf32>}> : () -> tensor<1024x3xf32>