```Python
commons: CommonQueryParams = Depends()
```

////

You declare the dependency as the type of the parameter, and you use `Depends()` without any parameter, instead of having to write the full class *again* inside of `Depends(CommonQueryParams)`.

The same example would then look like:

{* ../../docs_src/dependencies/tutorial004_an_py310.py hl[19] *}

...and **FastAPI** will know what to do.

/// tip

在你的 WebSocket 路由中，你可以 `await` 接收訊息並傳送訊息。

{* ../../docs_src/websockets_/tutorial001_py310.py hl[48:52] *}

你可以接收與傳送二進位、文字與 JSON 資料。

## 試試看 { #try-it }

如果你的檔案名為 `main.py`，用以下指令執行應用：

<div class="termy">

```console
$ fastapi dev

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

  shopt -s expand_aliases
else
  echo '==TFCI==: Error: Cannot find path to grealpath or gstat'
  echo 'TF CI scripts require GNU core utilties to be installed. Please make'
  echo 'sure they are present on your system and try again.'
  exit 1
fi

# "TFCI_MACOS_BAZEL_TEST_DIR_PATH" specifies the directory that Bazel should use
# when running tests. Each test will be executed in a separate subdirectory

    return snapshotElementsToList().toArray(array);
  }

  /*
   * We'd love to use 'new ArrayList(this)' or 'list.addAll(this)', but
   * either of these would recurse back to us again!
   */
  private List<E> snapshotElementsToList() {
    List<E> list = newArrayListWithExpectedSize(size());
    for (Multiset.Entry<E> entry : entrySet()) {
      E element = entry.getElement();

            .addValue("value1")
            .add("field2", "value2");
    String expected = "TestClass{field1=1, value1, field2=value2}";

    assertThat(helper.toString()).isEqualTo(expected);
    // Call toString again
    assertThat(helper.toString()).isEqualTo(expected);

    // Make sure the cached value is reset when we modify the helper at all
    String expected2 = "TestClass{field1=1, value1, field2=value2, 2}";

						this._scheduledTimeouts.set(id, setTimeout(
							() => {
								this._resume();
								while (this._scheduledTimeouts.has(id)) {
									// for some reason Go failed to register the timeout event, log and try again
									// (temporary workaround for https://github.com/golang/go/issues/28975)
									console.warn("scheduleTimeoutEvent: missed timeout event");
									this._resume();
								}
							},

        // Commit
        callback.commit();

        assertEquals(1, commitCount.get());
        assertEquals(3L, documentsBeforeCommit.get());

        // Store more and commit again
        callback.store(params, data);
        callback.store(params, data);

        assertEquals(5L, callback.getDocumentSize());

        callback.commit();

        assertEquals(2, commitCount.get());

        assertNotNull(hash);

        // Modify returned hash
        if (hash.length > 0) {
            hash[0] = (byte) 0xFF;
        }

        // Get hash again - should be unmodified
        byte[] hash2 = transport.getPreauthIntegrityHash();
        assertNotNull(hash2);

        // If original has data, verify it wasn't modified

        // Test engineReset()
        HMACT64 hmac = new HMACT64(TEST_KEY);
        hmac.engineUpdate(TEST_DATA, 0, TEST_DATA.length);
        hmac.engineReset();
        // After reset, should be able to digest again
        byte[] result = hmac.engineDigest();
        assertNotNull(result);
    }

    @Test
    void testEngineGetDigestLength() {
        // Test engineGetDigestLength()

        <artifactId>modello-maven-plugin</artifactId>
        <configuration>
          <version>1.2.0</version>
          <models>
            <model>../../api/maven-api-cli/src/main/mdo/core-extensions.mdo</model>
          </models>
          <templates>
            <template>reader-stax.vm</template>
            <template>writer-stax.vm</template>
          </templates>
          <params>