## 上下文管理器 { #context-managers }

### 什么是“上下文管理器” { #what-are-context-managers }

“上下文管理器”是你可以在 `with` 语句中使用的任意 Python 对象。

例如，[你可以用 `with` 来读取文件](https://docs.python.org/3/tutorial/inputoutput.html#reading-and-writing-files)：

```Python

    }

    /**
     * Returns the class loader.
     * <p>
     * The class loader is searched in the following order:
     * </p>
     * <ol>
     * <li>If the context class loader is set for the calling thread, that context class loader</li>
     * <li>If the class loader that loaded the target class can be obtained, that class loader</li>

    public void test_convert() throws Exception {
        /*
         * TODO ReadingConverter converter = new KatakanaConverter(); converter.init(); assertEquals("ケンサク",
         * converter.convert("検索").get(0));
         */
    }

				} else {
					logger.Default.Warn(context.Background(), "In model %v, the hook function `%v(*gorm.DB) error` has an incorrect parameter type. The expected parameter type is `%v`, but the provided type is `%v`.", schema, cbName, expectedPkgPath, inVarPkg)
					// PASS
				}
			default:

 * possible readings.
 * </p>
 *
 * <p>
 * The class also utilizes ICU4J's {@link com.ibm.icu.text.Transliterator} to convert full-width characters
 * to half-width and to convert any characters to lowercase, ensuring consistency in the output.
 * </p>
 *
 * <p>
 * Example:
 * For the input "キャ", the converter might return a list containing "kya".

          org-list:
            - elastic
          allow-whitelist-orgs-as-admins: true
          trigger-phrase: '.*run\W+elasticsearch-ci/precommit.*'
          github-hooks: true
          status-context: elasticsearch-ci/precommit
          cancel-builds-on-update: true
          included-regions:
            - ^docs/.*
          black-list-labels:
            - '>test-mute'
    builders:
      - inject:

          org-list:
            - elastic
          allow-whitelist-orgs-as-admins: true
          trigger-phrase: '.*run\W+elasticsearch-ci/{pr-job}.*'
          github-hooks: true
          status-context: elasticsearch-ci/{pr-job}
          cancel-builds-on-update: true
          excluded-regions:
            - ^docs/.*
          black-list-labels:
            - '>test-mute'
    builders:
      - inject:

/// details | 🌐 Tradução por IA e humanos

Esta tradução foi feita por IA orientada por humanos. 🤝

Ela pode conter erros de interpretação do significado original ou soar pouco natural, etc. 🤖

Você pode melhorar esta tradução [ajudando-nos a orientar melhor o LLM de IA](https://fastapi.tiangolo.com/pt/contributing/#translations).

[Versão em inglês](ENGLISH_VERSION_URL)

@app.get("/items/{id}", response_class=HTMLResponse)
async def read_item(request: Request, id: str):
    return templates.TemplateResponse(
        request=request, name="item.html", context={"id": id}

    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create handle with context only")
        void testConstructorWithContextOnly() {
            // When: Creating handle with context only
            TestDcerpcHandle h = new TestDcerpcHandle(mockContext);

            // Then: Should initialize correctly
            assertNotNull(h);