### 非 async な path operation 関数 { #non-async-path-operation-functions }

`async` なしの通常の `def` 関数でも同様に `yield` を使えます。

{* ../../docs_src/stream_data/tutorial001_py310.py ln[26:29] hl[27] *}

### アノテーションなし { #no-annotation }

バイナリデータをストリームする場合、戻り値の型アノテーションを宣言する必要は実際にはありません。

この場合、FastAPI はデータを Pydantic で JSON 化したり、何らかの方法でシリアライズしようとしないため、型アノテーションはエディタやツール向けの補助にすぎず、FastAPI 自体では使用されません。

     * hashes were used to construct this {@code NtlmPasswordAuthentication}
     * object which will be the case when NTLM HTTP Authentication is
     * used. There is no way to retrieve a users password in plain text unless
     * it is supplied by the user at runtime.
     */
    /**
     * Returns the password in plain text or {@code null} if the raw password

				t.Fatal(err)
			}
			r.Close()
			idx := idxCB()
			if !tt.wantIdx && len(idx) > 0 {
				t.Errorf("index returned above threshold")
			}
			if tt.wantIdx {
				if idx == nil {
					t.Errorf("no index returned")
				}
				var index s2.Index
				_, err = index.Load(s2.RestoreIndexHeaders(idx))
				if err != nil {
					t.Errorf("error loading index: %v", err)
				}
				t.Log("size:", len(idx))

   * advantage of <a
   * href="https://docs.oracle.com/javase/tutorial/java/generics/genTypeInference.html#type-inference-instantiation">"diamond"
   * syntax</a>. (Unlike here, there is no risk of overload ambiguity, since the {@code ArrayList}
   * constructors very wisely did not accept varargs.)
   *
   * @param initialArraySize the exact size of the initial backing array for the returned array list

    void testGetNextResponse() {
        // When
        CommonServerMessageBlockResponse nextResponse = response.getNextResponse();

        // Then - should return null as no next response is set
        assertEquals(null, nextResponse);
    }

    @Test
    @DisplayName("Should handle prepare method correctly")
    void testPrepareMethod() {
        // Given

   * getChecked(future, WillBeUnloadedException.class)}, and returns the loader. The caller can then
   * test that the {@code ClassLoader} can still be GCed. The test amounts to a test that {@code
   * getChecked} holds no strong references to the class.
   */
  private WeakReference<?> doTestClassUnloading() throws Exception {
    URLClassLoader shadowLoader = new URLClassLoader(parseJavaClassPath(), null);
    @SuppressWarnings("unchecked")

   * getChecked(future, WillBeUnloadedException.class)}, and returns the loader. The caller can then
   * test that the {@code ClassLoader} can still be GCed. The test amounts to a test that {@code
   * getChecked} holds no strong references to the class.
   */
  private WeakReference<?> doTestClassUnloading() throws Exception {
    URLClassLoader shadowLoader = new URLClassLoader(parseJavaClassPath(), null);
    @SuppressWarnings("unchecked")

          entry.zombie = true // We can't delete it until the current edit completes.
        }
      }
    }

    /**
     * Returns an unbuffered input stream to read the last committed value, or null if no value has
     * been committed.
     */
    fun newSource(index: Int): Source? {
      synchronized(this@DiskLruCache) {
        check(!done)

    mod.put(1, "one");
    mod.put(2, "two");
    mod.put(3, "three");

    BiMap<Number, String> unmod = Maps.<Number, String>unmodifiableBiMap(mod);

    /* No aliasing on inverse operations. */
    assertThat(unmod.inverse()).isSameInstanceAs(unmod.inverse());
    assertThat(unmod.inverse().inverse()).isSameInstanceAs(unmod);

    /* Unmodifiable is a view. */

  /**
   * Returns an array containing all of the elements in the specified collection. This method
   * returns the elements in the order they are returned by the collection's iterator. The returned
   * array is "safe" in that no references to it are maintained by the collection. The caller is
   * thus free to modify the returned array.
   *
   * <p>This method assumes that the collection size doesn't change while the method is running.
   *