from fastapi import FastAPI, Response

app = FastAPI()


@app.get("/headers-and-object/")
def get_headers(response: Response):
    response.headers["X-Cat-Dog"] = "alone in the world"

from fastapi import FastAPI

app = FastAPI()


@app.get("/items/{item_id}")
async def read_item(item_id: str, q: str | None = None):
    if q:
        return {"item_id": item_id, "q": q}

from typing import Union

from fastapi import FastAPI, Header

app = FastAPI()


@app.get("/items/")
async def read_items(x_token: Union[list[str], None] = Header(default=None)):

     * @param type the target type to unwrap to
     * @return instance for type, null if the type cannot be unwrapped
     */
    <T extends Address> T unwrap(Class<T> type);

    /**
     * Gets the host name of this address.
     *
     * @return the resolved host name, or the host address if it could not be resolved
     */
    String getHostName();

    /**

class User(BaseModel):
    username: str
    email: str


@app.post("/items/", response_model=ResponseMessage, tags=["items"])
async def create_item(item: Item):
    return {"message": "Item received"}


@app.get("/items/", response_model=list[Item], tags=["items"])
async def get_items():
    return [
        {"name": "Plumbus", "price": 3},
        {"name": "Portal Gun", "price": 9001},
    ]

// and options for creating keys.
type CreateKeyRequest struct {
	// Name is the name of the key that gets created.
	Name string
}

// DeleteKeyRequest is a structure containing fields
// and options for deleting keys.
type DeleteKeyRequest struct {
	// Name is the name of the key that gets deleted.
	Name string
}

// GenerateKeyRequest is a structure containing fields
// and options for generating data keys.

     *
     * @param config the configuration for this SMB session
     */
    public SmbComWriteAndXResponse(final Configuration config) {
        super(config);
    }

    /**
     * Gets the number of bytes written.
     *
     * @return the count of bytes written
     */
    public final long getCount() {
        return this.count;
    }

    @Override

     *
     * @see jcifs.internal.fscc.FileInformation#getFileInformationLevel()
     */
    @Override
    public byte getFileInformationLevel() {
        return FILE_INTERNAL_INFO;
    }

    /**
     * Gets the file index number.
     *
     * @return the index number assigned by the file system
     */
    public long getIndexNumber() {
        return this.indexNumber;
    }

    /**
     * {@inheritDoc}

     *
     * @param size the page size to set
     */
    public void setPageSize(final int size) {
        this.size = Integer.toString(size);
    }

    /**
     * Gets the page size for search log results with validation.
     * Returns the default page size if the current size is invalid.
     *
     * @return the validated page size
     */
    public int getPageSize() {

from typing import Annotated, Union

from fastapi import FastAPI, Query

app = FastAPI()


@app.get("/items/")
async def read_items(q: Annotated[Union[list[str], None], Query()] = None):
    query_items = {"q": q}