Apply shared dependencies at the router level via `dependencies=[Depends(...)]`.

## Async vs Sync *path operations*

Use `async` *path operations* only when fully certain that the logic called inside is compatible with async and await (it's called with `await`) or that doesn't block.

```python
from fastapi import FastAPI

app = FastAPI()


# Use async def when calling async code
@app.get("/async-items/")

Example:

Say you need to make a change to `master` and have a BWC layer in `5.x`. You
will need to:
. Create a branch called `index_req_change` off your remote `${remote}`. This
will contain your change.
. Create a branch called `index_req_bwc_5.x` off `5.x`. This will contain your bwc layer.
. Push both branches to your remote repository.

   * safe to do so. The exact circumstances under which a copy will or will not be performed are
   * undocumented and subject to change.
   *
   * <p>This method is not type-safe, as it may be called on elements that are not mutually
   * comparable.
   *
   * @throws ClassCastException if the elements are not mutually comparable
   * @throws NullPointerException if any of {@code elements} is null
   */

      @ParametricNullness T instance, Funnel<? super T> funnel);

  /**
   * Computes a hash code based on the data that have been provided to this hasher. The result is
   * unspecified if this method is called more than once on the same instance.
   */
  HashCode hash();

  /**
   * {@inheritDoc}
   *
   * @deprecated This returns {@link Object#hashCode()}; you almost certainly mean to call {@code

	}

	_, err := trw.Write([]byte("hello"))
	if err != nil {
		t.Fatalf("Write unexpectedly failed: %v", err)
	}

	// Check that WriteHeader and Write were called on the underlying response writer
	resp := rw.Result()
	if resp.StatusCode != 123 {
		t.Fatalf("unexpected status: %v", resp.StatusCode)
	}
	body, err := io.ReadAll(resp.Body)
	if err != nil {

        assertEquals(name, share.netName);
        assertEquals(type, share.type);
        assertEquals(remark, share.remark);
    }

    @Test
    @DisplayName("Test setUseUnicode is called with false")
    void testSetUseUnicode() throws Exception {
        // Create a spy to verify method call
        NetShareEnumResponse spyResponse = spy(new NetShareEnumResponse(mockConfig));

    waiter.awaitWaiting();
    PollingThread poller = new PollingThread(future);
    poller.start();
    PollingThread poller2 = new PollingThread(future);
    poller2.start();
    PollingThread poller3 = new PollingThread(future);
    poller3.start();
    poller.awaitInLoop();
    poller2.awaitInLoop();
    poller3.awaitInLoop();

    // The waiter queue should be {poller x 3}->waiter1
    waiter.interrupt();

        val group = r.group
        val module = r.module
        val expectedLength = group.length + 1 + module.length

        val isProvided = providedBy.any {
            // This method is called very often during dependency resolution.
            // This implementation avoids allocating new strings.
            it.length == expectedLength &&
                it[group.length] == ':' &&

            assertEquals(1000000L, response.info.getCreateTime());
            assertEquals(2000000L, response.info.getLastWriteTime());

            // Verify the mock was called
            verify(mockInfo).getAttributes();
            verify(mockInfo).getSize();
            verify(mockInfo).getCreateTime();
            verify(mockInfo).getLastWriteTime();
        }
    }

    interface Handler {
        void handle(int code, String message);
    }

    @Mock
    Handler handler;

    @Test
    @DisplayName("Interaction: handler called with each code/message pair")
    void interaction_with_mock_handler_is_as_expected() {
        // Interaction test: simulate passing each code/message to a collaborator