/**
     * Get a URL stream handler for SMB URLs
     *
     * @return an URL handler using this context
     */
    URLStreamHandler getUrlHandler();

    /**
     * Check if default credentials are configured
     *
     * @return whether default credentials are available
     */
    boolean hasDefaultCredentials();

    /**
     * Create a child context with default credentials

        if ((s.length() > 1) && s.startsWith("0")) {
            return null;
        }
        return tryParseInt(s);
    }

    private static Integer tryParseInt(String s) {
        // for performance, check digits instead of relying later on catching NumberFormatException
        if (!isDigits(s)) {
            return null;
        }

        try {
            long longValue = Long.parseLong(s);

		Description:    "The SelectRequest entity is missing a required parameter. Check the service documentation and try again.",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrObjectSerializationConflict: {
		Code:           "ObjectSerializationConflict",
		Description:    "The SelectRequest entity can only contain one of CSV or JSON. Check the service documentation and try again.",
		HTTPStatusCode: http.StatusBadRequest,
	},

        String[] phases = { ChatPhaseCallback.PHASE_INTENT, ChatPhaseCallback.PHASE_SEARCH, ChatPhaseCallback.PHASE_EVALUATE,
                ChatPhaseCallback.PHASE_FETCH, ChatPhaseCallback.PHASE_ANSWER };

        // Check all phases are unique
        for (int i = 0; i < phases.length; i++) {
            for (int j = i + 1; j < phases.length; j++) {
                assertFalse("Phase constants should be unique", phases[i].equals(phases[j]));

                int number = Integer.parseInt(matcher.group(2));
                return new Qualifier(QualifierLevel.valueOf(level), number);
            } else {
                // This shouldn't happen - we check the format before this is called
                throw new IllegalArgumentException("Invalid qualifier [" + qualifier + "] passed");
            }
        }

        public String toString() {

    }

    @Test
    public void test_exceptionInheritance() {
        // Test exception inheritance hierarchy
        CommandExecutionException exception = new CommandExecutionException("Test");

        // Check inheritance chain
        assertTrue(exception instanceof CommandExecutionException);
        assertTrue(exception instanceof FessSystemException);
        assertTrue(exception instanceof RuntimeException);

      // even check the guard. I don't think we care too much about this use case but it could lead
      // to a confusing error message.
      throw new TimeoutException(
          "Timed out waiting for "
              + this
              + " to reach a terminal state. "
              + "Current state: "
              + state());
    }
  }

                DependencyScope.SYSTEM.id(),
                DependencyScope.SYSTEM.isTransitive(),
                all(),
                MavenArtifactProperties.LOCAL_PATH));

        // == sanity check
        if (result.size() != org.apache.maven.api.DependencyScope.values().length - 1) { // sans "undefined"
            throw new IllegalStateException("Maven4 API dependency scope mismatch");
        }

`current_user`의 타입을 Pydantic 모델 `User`로 선언한다는 점에 주목하세요.

이는 함수 내부에서 자동 완성과 타입 체크에 도움을 줍니다.

/// tip | 팁

요청 본문도 Pydantic 모델로 선언된다는 것을 기억하실지도 모릅니다.

여기서 **FastAPI**는 `Depends`를 사용하고 있기 때문에 혼동하지 않습니다.

///

/// check | 확인

이 의존성 시스템이 설계된 방식은 모두 `User` 모델을 반환하는 서로 다른 의존성(서로 다른 "dependables")을 가질 수 있도록 합니다.

해당 타입의 데이터를 반환할 수 있는 의존성이 하나만 있어야 하는 것으로 제한되지 않습니다.

///

## 다른 모델 { #other-models }

        }
        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;
        }