}

    public void setVersionNo(final Long version) {
        asDocMeta().version(version);
    }

    @Override
    public String toString() {
        return "ThumbnailQueue [createdBy=" + createdBy + ", createdTime=" + createdTime + ", generator=" + generator + ", path=" + path
                + "]";
    }

    private final int lineNumber;

    private final int columnNumber;

    private final String message;

    private final Exception exception;

    private final Severity severity;

    /**
     * Creates a new problem with the specified message and exception.
     * Either {@code message} or {@code exception} is required
     *
     * @param message The message describing the problem, may be {@code null}.

from fastapi import Depends, FastAPI, HTTPException

app = FastAPI()


data = {
    "plumbus": {"description": "Freshly pickled plumbus", "owner": "Morty"},
    "portal-gun": {"description": "Gun to create portals", "owner": "Rick"},
}


class OwnerError(Exception):
    pass


def get_username():
    try:
        yield "Rick"
    except OwnerError as e:

from fastapi import FastAPI

description = """
ChimichangApp API helps you do awesome stuff. 🚀

## Items

You can **read items**.

## Users

You will be able to:

* **Create users** (_not implemented_).
* **Read users** (_not implemented_).
"""

app = FastAPI(
    title="ChimichangApp",
    description=description,
    summary="Deadpool's favorite app. Nuff said.",
    version="0.0.1",

    @Required
    @Size(max = 1000)
    public String input;

    @Required
    @Size(max = 1000)
    public String output;

    public void initialize() {
        crudMode = CrudMode.CREATE;
    }

    public String dictId;

    @ValidateTypeFailure
    public Integer crudMode;

    @Required
    @Size(max = 1000)
    public String input;

    public void initialize() {
        crudMode = CrudMode.CREATE;
    }

    public Integer crudMode;

    @Required
    @Size(max = 100)
    public String name;

    public Map<String, String> attributes = new HashMap<>();

    public void initialize() {
        crudMode = CrudMode.CREATE;
    }

public class ArrayTableRowMapTest extends RowMapTests {
  public ArrayTableRowMapTest() {
    super(true, false, false, false);
  }

  @Override
  Table<String, Integer, Character> makeTable() {
    return ArrayTable.create(asList("foo", "bar", "dog"), asList(1, 2, 3));
  }

  @Override
  protected Map<String, Map<Integer, Character>> makeEmptyMap() {
    throw new UnsupportedOperationException();
  }

But you still need to define what is the dependable, the callable that you pass as a parameter to `Depends()` or `Security()`.

There are multiple tools that you can use to create those dependables, and they get integrated into OpenAPI so they are shown in the automatic docs UI, they can be used by automatically generated clients and SDKs, etc.

You can import them from `fastapi.security`:

```python

_T = TypeVar("_T")


@asynccontextmanager
async def contextmanager_in_threadpool(
    cm: ContextManager[_T],
) -> AsyncGenerator[_T, None]:
    # blocking __exit__ from running waiting on a free thread
    # can create race conditions/deadlocks if the context manager itself
    # has its own internal pool (e.g. a database connection pool)
    # to avoid this we let __exit__ run without a capacity limit