/// note | Заметка

FastAPI понимает, что значение `q` не является обязательным из-за значения по умолчанию `= None`.

Аннотация типов `str | None` не используется FastAPI для определения обязательности; он узнает, что параметр не обязателен, потому что у него есть значение по умолчанию `= None`.

Но добавление аннотаций типов позволит вашему редактору кода лучше вас поддерживать и обнаруживать ошибки.

///

/// note | Примітка

FastAPI буде знати, що значення `q` не є обов'язковим через значення за замовчуванням `= None`.

`str | None` FastAPI не використовує, щоб визначити, що значення не є обов’язковим - він знатиме, що воно не є обов’язковим, тому що має значення за замовчуванням `= None`.

Але додавання анотацій типів дозволить вашому редактору надати вам кращу підтримку та виявляти помилки.

///

    do {
      System.runFinalization();
      if (predicate.isDone()) {
        return;
      }
      CountDownLatch done = new CountDownLatch(1);
      createUnreachableLatchFinalizer(done);
      await(done);
      if (predicate.isDone()) {
        return;
      }
    } while (System.nanoTime() - deadline < 0);
    throw formatRuntimeException(

    for prod and one for tests. However, unlike our other packages, as of this
    writing it has test supersource but no prod supersource.

    GWT happens to use the prod .gwt.xml, so it looks for no supersource for
    tests, either. This causes it to fail to find AtomicLongMapTest.

    Our workaround is to tell GWT that util.concurrent and all other packages

    for prod and one for tests. However, unlike our other packages, as of this
    writing it has test supersource but no prod supersource.

    GWT happens to use the prod .gwt.xml, so it looks for no supersource for
    tests, either. This causes it to fail to find AtomicLongMapTest.

    Our workaround is to tell GWT that util.concurrent and all other packages

affinity: {} ## List of buckets to be created after minio install ## buckets: # # Name of the bucket # - name: bucket1 # # Policy to be set on the # # bucket [none|download|upload|public] # policy: none # # Purge if bucket exists already # purge: false # # set versioning for # # bucket [true|false] # versioning: false # - name: bucket2 # policy: none # purge: false # versioning: true ## Additional Annotations for the Kubernetes Job makeBucketJob makeBucketJob: podAnnotations: annotations: securityContext:...

exitCommand: "" ## List of buckets to be created after minio install ## buckets: # # Name of the bucket # - name: bucket1 # # Policy to be set on the # # bucket [none|download|upload|public] # policy: none # # Purge if bucket exists already # purge: false # # set versioning for # # bucket [true|false] # versioning: false # - name: bucket2 # policy: none # purge: false # versioning: true ## Additional Annotations for the Kubernetes Job makeBucketJob makeBucketJob: podAnnotations: annotations: securityContext:...

affinity: {} ## List of buckets to be created after minio install ## buckets: # # Name of the bucket # - name: bucket1 # # Policy to be set on the # # bucket [none|download|upload|public] # policy: none # # Purge if bucket exists already # purge: false # # set versioning for # # bucket [true|false] # versioning: false # - name: bucket2 # policy: none # purge: false # versioning: true ## Additional Annotations for the Kubernetes Job makeBucketJob makeBucketJob: podAnnotations: annotations: securityContext:...

affinity: {} ## List of buckets to be created after minio install ## buckets: # # Name of the bucket # - name: bucket1 # # Policy to be set on the # # bucket [none|download|upload|public] # policy: none # # Purge if bucket exists already # purge: false # # set versioning for # # bucket [true|false] # versioning: false # - name: bucket2 # policy: none # purge: false # versioning: true ## Additional Annotations for the Kubernetes Job makeBucketJob makeBucketJob: podAnnotations: annotations: securityContext:...

    "bar": {"id": "bar", "title": "Bar", "description": "The bartenders"},
}

app = FastAPI()


class Item(BaseModel):
    id: str
    title: str
    description: str | None = None


@app.get("/items/{item_id}", response_model=Item)
async def read_main(item_id: str, x_token: Annotated[str, Header()]):
    if x_token != fake_secret_token: