initMapWithNullValue();

    // putIfAbsent should replace the null value with the new value
    assertNull(
        "putIfAbsent(existingKeyWithNullValue, value) should return null",
        getMap().putIfAbsent(getKeyForNullValue(), v3()));
    assertEquals("Map should now contain the new value", v3(), getMap().get(getKeyForNullValue()));
  }

}

// Peek returns the key value (or undefined if not found) without updating
// the "recently used"-ness of the key.
func (c *LRU[K, V]) Peek(key K) (value V, ok bool) {
	c.mu.Lock()
	defer c.mu.Unlock()
	var ent *Entry[K, V]
	if ent, ok = c.items[key]; ok {
		// Expired item check
		if time.Now().After(ent.ExpiresAt) {
			return value, false
		}
		return ent.Value, true
	}
	return
}

}

type StringsSlice []string

func (l StringsSlice) Value() (driver.Value, error) {
	bytes, err := json.Marshal(l)
	return string(bytes), err
}

func (l *StringsSlice) Scan(input interface{}) error {
	switch value := input.(type) {
	case string:
		return json.Unmarshal([]byte(value), l)
	case []byte:
		return json.Unmarshal(value, l)
	default:
		return errors.New("not supported")
	}
}

            else -> LinkedTags(this.key, this.value, nextMinusKey)
          }
        }
      }

    // Return a new `Tags` that maps `key` to `value`.
    return when {
      value != null -> LinkedTags(key, value, thisMinusKey)
      else -> thisMinusKey
    }
  }

  override fun <T : Any> get(key: KClass<T>): T? =
    when {
      key == this.key -> key.java.cast(value)
      else -> next[key]
    }

    AtomicLongMap<String> map = AtomicLongMap.create();
    String key = "key";
    long value = random.nextInt(MAX_ADDEND);
    assertEquals(0L, map.get(key));
    assertFalse(map.containsKey(key));

    assertEquals(value, map.addAndGet(key, value));
    assertEquals(value, map.get(key));

    assertEquals(0L, map.addAndGet(key, -1 * value));
    assertEquals(0L, map.get(key));
    assertTrue(map.containsKey(key));

    @Nonnull
    default MessageBuilder a(CharSequence value, int start, int end) {
        return append(value, start, end);
    }

    /**
     * Append content to the message buffer.
     *
     * @param value the content to append
     * @return the current builder
     */
    @Nonnull
    default MessageBuilder a(CharSequence value) {
        return append(value);
    }

    /**

    dbsession_moock = Mock()

    with patch(
        "docs_src.dependencies.tutorial007_py39.DBSession",
        return_value=dbsession_moock,
        create=True,
    ):
        value = asyncio.run(test_async_gen())

    assert value is dbsession_moock

  // A simple type whose .toString() will return the same value each time, but without maintaining
  // a strong reference to that value.
  static class Key {
    private final int value;
    private WeakReference<String> toString;

    Key(int value) {
      this.value = value;
    }

    @Override
    public synchronized String toString() {
      String s;

app = FastAPI()
app.state.value = 42


async def extract_value_from_http_connection(conn: HTTPConnection):
    return conn.app.state.value


@app.get("/http")
async def get_value_by_http(value: int = Depends(extract_value_from_http_connection)):
    return value


@app.websocket("/ws")
async def get_value_by_ws(
    websocket: WebSocket, value: int = Depends(extract_value_from_http_connection)
):

The **default** value of the **function parameter** is the **actual default** value, that's more intuitive with Python in general. 😌