* See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Testing utilities. This package is a part of the open-source <a
 * href="https://github.com/google/guava">Guava</a> library.
 */
@CheckReturnValue
@NullMarked
package com.google.common.testing;

import com.google.errorprone.annotations.CheckReturnValue;

        verify(pipe, times(1)).ensureTreeConnected();
        verify(tree, times(2)).acquire();
    }

    @Test
    @DisplayName("getInput/getOutput return cached streams when open; throw when closed")
    void getInputOutput_caching_and_closed() throws Exception {
        // Arrange: minimal stubs so stream construction works
        SmbPipeHandleImpl handle = newHandleWithBasicStubs(0, "\\\\pipe\\\\foo");

 * com.google.common.xml.XmlEscapers} in {@code com.google.common.xml}, and {@link
 * com.google.common.net.UrlEscapers} in {@code com.google.common.net}.
 *
 * <p>This package is a part of the open-source <a href="https://github.com/google/guava">Guava</a>
 * library.
 */
@CheckReturnValue
@NullMarked
package com.google.common.escape;

import com.google.errorprone.annotations.CheckReturnValue;

  private final SlackApi slackApi;

  /** Guarded by this. */
  private WebSocket webSocket;

  public RtmSession(SlackApi slackApi) {
    this.slackApi = slackApi;
  }

  public void open(String accessToken) throws IOException {
    if (webSocket != null) throw new IllegalStateException();

    RtmStartResponse rtmStartResponse = slackApi.rtmStart(accessToken);

여기서, `shutdown` 이벤트 핸들러 함수는 `"Application shutdown"`이라는 텍스트를 `log.txt` 파일에 기록합니다.

/// info | 정보

`open()` 함수에서 `mode="a"`는 "추가"를 의미하므로, 파일에 있는 기존 내용은 덮어쓰지 않고 새로운 줄이 추가됩니다.

///

/// tip | 팁

이 경우, 우리는 표준 파이썬 `open()` 함수를 사용하여 파일과 상호작용하고 있습니다.

따라서 I/O(입출력) 작업이 포함되어 있어 디스크에 기록되는 것을 "기다리는" 과정이 필요합니다.

하지만 `open()`은 `async`와 `await`를 사용하지 않습니다.

그래서 우리는 이벤트 핸들러 함수를 `async def` 대신 일반 `def`로 선언합니다.

///

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3

import java.io.IOException
import okio.BufferedSink

open class ForwardingRequestBody(
  delegate: RequestBody?,
) : RequestBody() {
  private val delegate: RequestBody

  fun delegate(): RequestBody = delegate

 * Service}.
 *
 * <p>Commonly used utilities include {@link Futures}, {@link MoreExecutors}, {@link
 * ThreadFactoryBuilder}, and {@link Uninterruptibles}.
 *
 * <p>This package is a part of the open-source <a href="https://github.com/google/guava">Guava</a>
 * library.
 */
@CheckReturnValue
@NullMarked
package com.google.common.util.concurrent;

import com.google.errorprone.annotations.CheckReturnValue;

🖼, <a href="https://docs.python.org/3/tutorial/inputoutput.html#reading-and-writing-files" class="external-link" target="_blank">👆 💪 ⚙️ `with` ✍ 📁</a>:

```Python
with open("./somefile.txt") as f:
    contents = f.read()
    print(contents)
```

🔘, `open("./somefile.txt")` ✍ 🎚 👈 🤙 "🔑 👨‍💼".

🕐❔ `with` 🍫 🏁, ⚫️ ⚒ 💭 🔐 📁, 🚥 📤 ⚠.

🕐❔ 👆 ✍ 🔗 ⏮️ `yield`, **FastAPI** 🔜 🔘 🗜 ⚫️ 🔑 👨‍💼, &amp; 🌀 ⚫️ ⏮️ 🎏 🔗 🧰.

        }
        return b;
    }

    /**
     * Creates a range of dialect versions between min and max.
     *
     * @param min
     *            may be null for open end
     * @param max
     *            may be null for open end
     * @return range of versions
     */
    public static Set<DialectVersion> range(final DialectVersion min, final DialectVersion max) {

	// LDAP STS API.

	// Initialize LDAP credentials
	var ldapOpts []cr.LDAPIdentityOpt
	if sessionPolicyFile != "" {
		var policy string
		if f, err := os.Open(sessionPolicyFile); err != nil {
			log.Fatalf("Unable to open session policy file %s: %v", sessionPolicyFile, err)
		} else {
			bs, err := io.ReadAll(f)
			if err != nil {
				log.Fatalf("Error reading session policy file: %v", err)
			}