{* ../../docs_src/path_operation_configuration/tutorial005.py hl[21] *}

/// info | 정보

`response_description`은 구체적으로 응답을 지칭하며, `description`은 일반적인 *경로 작동*을 지칭합니다.

///

/// check | 확인

OpenAPI는 각 *경로 작동*이 응답에 관한 설명을 요구할 것을 명시합니다.

따라서, 응답에 관한 설명이 없을경우, **FastAPI**가 자동으로 "성공 응답" 중 하나를 생성합니다.

///

<img src="/img/tutorial/path-operation-configuration/image03.png">

## 단일 *경로 작동* 지원중단

{* ../../docs_src/query_params/tutorial002_py310.py hl[7] *}

Nesse caso, o parâmetro da função `q` será opcional, e `None` será o padrão.

/// check | Verificar

Você também pode notar que o **FastAPI** é esperto o suficiente para perceber que o parâmetro da rota `item_id` é um parâmetro da rota, e `q` não é, portanto, `q` é o parâmetro de consulta.

///

        }
        return result.replaceAll("\\s+", " ");
    }

    /**
     * Returns the supported language for a given language.
     *
     * @param lang The language to check.
     * @return The supported language, or null if not supported.
     */
    protected String getSupportedLanguage(final String lang) {
        if (StringUtil.isBlank(lang)) {
            return null;
        }

{* ../../docs_src/query_params/tutorial002_py310.py hl[7] *}

In this case, the function parameter `q` will be optional, and will be `None` by default.

/// check

Also notice that **FastAPI** is smart enough to notice that the path parameter `item_id` is a path parameter and `q` is not, so, it's a query parameter.

///

    //                                                                              ======
    @Override
    protected int delegateSelectCountUniquely(final ConditionBean cb) {
        // #pending check response and cast problem
        final SearchRequestBuilder builder = client.prepareSearch(asEsIndex());
        final EsAbstractConditionBean esCb = (EsAbstractConditionBean) cb;
        if (esCb.getPreference() != null) {

            // Test with concrete implementation
            assertDoesNotThrow(() -> concreteImplementation.replaceCache());
        }

        @Test
        @DisplayName("Should check if resolve hashes")
        void testIsResolveHashes() {
            // Test with mock
            when(mockReferralData.isResolveHashes()).thenReturn(true);
            assertTrue(mockReferralData.isResolveHashes());

        String[] excludes = { "exclude3", "exclude1", "exclude2" };

        String result = popularWordHelper.getCacheKey(seed, tags, roles, fields, excludes);

        assertNotNull(result);
        // Check for sorted concatenated strings
        assertTrue("Result should contain sorted tags", result.contains("aaammmzzz"));
        assertTrue("Result should contain sorted roles", result.contains("role1role2role3"));

   * @return the escaped form of {@code string}
   * @throws NullPointerException if {@code string} is null
   */
  @Override
  public String escape(String string) {
    checkNotNull(string); // GWT specific check (do not optimize)
    // Inlineable fast-path loop which hands off to escapeSlow() only if needed
    int length = string.length();
    for (int index = 0; index < length; index++) {

			t.Errorf("(%d) failed to create http.Request, got %v", i, err)
		}
		if testCase.expected != ErrNone {
			// Should be set since we are simulating a http server.
			req.RequestURI = req.URL.RequestURI()
			// Check if it matches!
			errCode := doesPresignV2SignatureMatch(req)
			if errCode != testCase.expected {
				t.Errorf("(%d) expected to get %s, instead got %s", i, niceError(testCase.expected), niceError(errCode))
			}

   * array nor its contents can be null, but it is not useful to force the use of {@code
   * requireNonNull} or the like just to assert that.
   *
   * <p>{@code EqualsTester} will always check that every object it is given returns false from
   * {@code equals(null)}, so it is neither useful nor allowed to include a null value in any
   * equality group.
   */
  @CanIgnoreReturnValue