```python
from typing import Optional


def say_hi(name: Optional[str]):
    print(f"Hey {name}!")
```

O parâmetro `name` é definido como `Optional[str]`, mas não é opcional; não é possível chamar a função sem o parâmetro:

```Python
say_hi()  # Ah, não, isso gera um erro! 😱
```

O parâmetro `name` continua obrigatório (não é opcional) porque não tem valor padrão. Ainda assim, `name` aceita `None` como valor:

```Python

    )
    assert response.json() == {
        "name": "Fooz",
        "description": "Item description",
        "price": 3,
        "tax": 10.5,
        "tags": ["tag1", "tag2"],
    }


def test_patch_name(client: TestClient):
    response = client.patch(
        "/items/bar",
        json={"name": "Barz"},
    )
    assert response.json() == {
        "name": "Barz",
        "description": "The bartenders",

 * need for a distinct {@code ImmutableBiMultimap} type.
 *
 * <p><a id="iteration"></a>
 *
 * <p><b>Key-grouped iteration.</b> All view collections follow the same iteration order. In all
 * current implementations, the iteration order always keeps multiple entries with the same key
 * together. Any creation method that would customarily respect insertion order (such as {@link

      int hash = element.hashCode();
      for (int j = Hashing.smear(hash); ; j++) {
        int index = j & mask;
        Object value = table[index];
        if (value == null) {
          // Came to an empty slot. Put the element here.
          elements[uniques++] = element;
          table[index] = element;
          hashCode += hash;
          break;
        } else if (value.equals(element)) {

    response = client.get(
        "/items?token=jessica", headers={"X-Token": "fake-super-secret-token"}
    )
    assert response.status_code == 200
    assert response.json() == {
        "plumbus": {"name": "Plumbus"},
        "gun": {"name": "Portal Gun"},
    }


def test_items_with_no_token_jessica(client: TestClient):
    response = client.get("/items", headers={"X-Token": "fake-super-secret-token"})

    }
  }

  /**
   * Returns an immutable multimap containing the same mappings as {@code multimap}. The generated
   * multimap's key and value orderings correspond to the iteration ordering of the {@code
   * multimap.asMap()} view.
   *
   * <p>Despite the method name, this method attempts to avoid actually copying the data when it is

        void testGetCreationTime() {
            assertEquals(0, response.getCreationTime());
        }

        @Test
        @DisplayName("getCreateTime should return same as getCreationTime")
        void testGetCreateTime() {
            assertEquals(response.getCreationTime(), response.getCreateTime());
        }

        @Test

			"SELECT * FROM `users` WHERE name = ? AND `users`.`deleted_at` IS NULL ORDER BY `users`.`id` LIMIT ?",
			"INSERT INTO `users` (`created_at`,`updated_at`,`deleted_at`,`name`,`age`,`birthday`,`company_id`,`manager_id`,`active`) VALUES (?,?,?,?,?,?,?,?,?)",

			[]clause.Interface{
				clause.Select{}, clause.From{
					Tables: []clause.Table{{Name: "users"}},
					Joins: []clause.Join{
						{
							Type:  clause.RightJoin,
							Table: clause.Table{Name: "profiles"},
							ON: clause.Where{
								[]clause.Expression{clause.Eq{clause.Column{Table: "profiles", Name: "email"}, clause.Column{Table: clause.CurrentTable, Name: "email"}}},
							},
						},
					},
				}, clause.From{

        }
        List<String> subs = new ArrayList<>();
        subs.add("type=" + terminal.getType());
        if (terminal instanceof TerminalExt te) {
            subs.add("provider=" + te.getProvider().name());
        }
        if (terminal instanceof AbstractPosixTerminal pt) {
            subs.add("pty=" + pt.getPty().getClass().getName());
        }