{* ../../docs_src/events/tutorial003.py hl[1,13] *}

A **context manager** in Python is something that you can use in a `with` statement, for example, `open()` can be used as a context manager:

```Python
with open("file.txt") as file:
    file.read()
```

In recent versions of Python, there's also an **async context manager**. You would use it with `async with`:

```Python
async with lifespan(app):
    await do_stuff()
```

Um **gerenciador de contexto** em Python é algo que você pode usar em uma declaração `with`, por exemplo, `open()` pode ser usado como um gerenciador de contexto:

```Python
with open("file.txt") as file:
    file.read()
```

Nas versões mais recentes de Python, há também um **gerenciador de contexto assíncrono**. Você o usaria com `async with`:

```Python
async with lifespan(app):
    await do_stuff()

<div class="termy">

```console
$ uv pip install -r requirements.txt
---> 100%
```

</div>

////

/// details | `requirements.txt`

Một tệp `requirements.txt` với một số gói sẽ trông như thế này:

```requirements.txt
fastapi[standard]==0.113.0
pydantic==2.8.0
```

///

## Chạy Chương trình của bạn

  buildTypes {
    release {
      isShrinkResources = true
      isMinifyEnabled = true
      signingConfig = signingConfigs.getByName("debug")
      setProguardFiles(listOf(getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"))
      testProguardFiles("test-proguard-rules.pro")
    }
  }

  lint {
    abortOnError = true
  }
}

dependencies {
  implementation(libs.playservices.safetynet)

        .addEqualityGroup(
            new ResourceInfo(FILE, "a/b/c.txt", getClass().getClassLoader()),
            new ResourceInfo(FILE, "a/b/c.txt", getClass().getClassLoader()))
        .addEqualityGroup(new ResourceInfo(FILE, "x.txt", getClass().getClassLoader()))
        .testEquals();
  }

  @AndroidIncompatible // Android forbids null parent ClassLoader

./mc admin replicate add minio1 minio2
./mc admin replicate resync start minio1 minio2
sleep 30

./mc ls -r --versions minio1/newbucket >/tmp/minio1.txt
./mc ls -r --versions minio2/newbucket >/tmp/minio2.txt

out=$(diff -qpruN /tmp/minio1.txt /tmp/minio2.txt)
ret=$?
if [ $ret -ne 0 ]; then
	echo "BUG: expected no missing entries after replication resync: $out"
	exit 1

        // prepare a dummy request/response using a real SMB block type
        ServerMessageBlock req = new SmbComOpenAndX("test.txt", 0, 0, null);
        ServerMessageBlock resp = new SmbComOpenAndX("test.txt", 0, 0, null);
        resp.received = true;

        session.transport(); // initialise transport

        // Mock the sessionSetup behavior to avoid actual network calls

<div class="termy">

```console
$ uv pip install -r requirements.txt
---> 100%
```

</div>

////

/// details | 關於 `requirements.txt`

一個包含一些套件的 `requirements.txt` 檔案看起來應該是這樣的：

```requirements.txt
fastapi[standard]==0.113.0
pydantic==2.8.0
```

///

## 執行程式

在啟用虛擬環境後，你可以執行你的程式，它將使用虛擬環境中的 Python 和你在其中安裝的套件。

    }

    @Test
    void decode_basic_noContexts() throws Exception {
        Configuration config = Mockito.mock(Configuration.class);
        Smb2CreateResponse resp = new Smb2CreateResponse(config, "file.txt");

        byte[] fileId = new byte[16];
        for (int i = 0; i < fileId.length; i++)
            fileId[i] = (byte) (i + 1);

        byte[] header = buildSmb2Header();

    }

    // Test init() method with file type queries
    public void test_init_withFileTypeQueries() {
        testFileTypeHelper.setTypes(new String[] { "pdf", "doc", "txt" });

        facetQueryView.addQuery("label1", "filetype:html");
        facetQueryView.addQuery("label2", "field2:value2");

        facetQueryView.init();