app = FastAPI()

items = {"foo": {"name": "Fighters", "size": 6}, "bar": {"name": "Tenders", "size": 3}}


@app.put("/items/{item_id}")
async def upsert_item(
    item_id: str,
    name: Annotated[str | None, Body()] = None,
    size: Annotated[int | None, Body()] = None,
):
    if item_id in items:
        item = items[item_id]
        item["name"] = name
        item["size"] = size
        return item

	}

	generateStruct := func(name string) *CustomizeFieldStruct {
		return &CustomizeFieldStruct{
			Name:             name,
			FieldAllowCreate: name + "_allow_create",
			FieldAllowUpdate: name + "_allow_update",
			FieldAllowSave:   name + "_allow_save",
			FieldAllowSave2:  name + "_allow_save2",
			FieldAllowSave3:  name + "_allow_save3",
			FieldReadonly:    name + "_allow_readonly",

	invalidTables := []string{"table name", "table \"name\"", "✅✅", "$table$"}

	for _, name := range validTables {
		if err := validatePsqlTableName(name); err != nil {
			t.Errorf("Should be valid: %s - %s", name, err)
		}
	}
	for _, name := range invalidTables {
		if err := validatePsqlTableName(name); err != errInvalidPsqlTablename {

    /**
     * Adds a script engine.
     * @param name The name of the script engine.
     * @param scriptEngine The script engine.
     */
    public void add(final String name, final ScriptEngine scriptEngine) {
        if (name == null || scriptEngine == null) {
            throw new IllegalArgumentException(
                    "Both name and scriptEngine parameters are required. name: " + name + ", scriptEngine: " + scriptEngine);
        }

    ],
)

cc_library(
    name = "abstract_op_attrs",
    hdrs = ["abstract_op_attrs.h"],
    visibility = [
        "//tensorflow:internal",
    ],
    deps = [
        "//tensorflow/core:lib",
        "//tensorflow/core:protos_all_cc",
        "@com_google_absl//absl/container:inlined_vector",
    ],
)

cc_library(
    name = "abstract_operation",
    hdrs = ["abstract_operation.h"],

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.artifact.resolver;

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import java.io.File;
import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.List;

        hashed_password="secrethashed",
    )
    pet = PetDB(name="Nibbler", owner=user)
    return pet


@app.get("/pets/", response_model=list[PetOut])
async def read_pets():
    user = UserDB(
        email="******@****.***",
        hashed_password="secrethashed",
    )
    pet1 = PetDB(name="Nibbler", owner=user)
    pet2 = PetDB(name="Zoidberg", owner=user)
    return [pet1, pet2]

```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

            default: 20
            example: 20
        - name: sort
          in: query
          description: Sorted field name
          required: false
          schema:
            type: string
            example: score
        - name: fields.label
          in: query
          description: Filtered label name
          required: false
          style: form
          explode: true

board":"7.0.0"},"references":[{"id":"87b6d8d0-b2b6-11e9-b23e-033a71496733","name":"panel_0","type":"visualization"},{"id":"1523d560-b2b7-11e9-b23e-033a71496733","name":"panel_1","type":"visualization"},{"id":"a9a84830-b2ba-11e9-b23e-033a71496733","name":"panel_2","type":"visualization"},{"id":"3826fb80-b2be-11e9-b23e-033a71496733","name":"panel_3","type":"visualization"},{"id":"9ac57e90-b2c0-11e9-b23e-033a71496733","name":"panel_4","type":"visualization"},{"id":"cdcfe690-b2c0-11e9-b23e-033a71496...