@app.exception_handler(RequestValidationError)
async def validation_exception_handler(request, exc):
    print(f"OMG! The client sent invalid data!: {exc}")
    return await request_validation_exception_handler(request, exc)


@app.get("/items/{item_id}")
async def read_item(item_id: int):
    if item_id == 3:
        raise HTTPException(status_code=418, detail="Nope! I don't like 3.")

}

// GormDataTypeInterface gorm data type interface
type GormDataTypeInterface interface {
	GormDataType() string
}

// FieldNewValuePool field new scan value pool
type FieldNewValuePool interface {
	Get() interface{}
	Put(interface{})
}

// CreateClausesInterface create clauses interface
type CreateClausesInterface interface {
	CreateClauses(*Field) []clause.Interface
}

from fastapi import FastAPI, Query

app = FastAPI()


@app.get("/items/")
async def read_items(q: list[str] = Query(default=["foo", "bar"])):
    query_items = {"q": q}

from fastapi import FastAPI
from fastapi.responses import FileResponse

some_file_path = "large-video-file.mp4"
app = FastAPI()


@app.get("/", response_class=FileResponse)
async def main():

    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse list(final OptionalThing<Integer> pageNumber, final SearchForm form) {
        pageNumber.ifPresent(num -> {
            relatedQueryPager.setCurrentPageNumber(pageNumber.get());
        }).orElse(() -> {
            relatedQueryPager.setCurrentPageNumber(0);
        });
        return asHtml(path_AdminRelatedquery_AdminRelatedqueryJsp).renderWith(data -> {
            searchPaging(data, form);

import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.opensearch.action.admin.indices.alias.Alias;
import org.opensearch.action.admin.indices.alias.get.GetAliasesResponse;
import org.opensearch.action.admin.indices.create.CreateIndexResponse;
import org.opensearch.transport.client.Client;

/**
 * Test class for refactoring changes made to Suggester class.
 *

    // Finish the task by unblocking the task latch.  Then wait for the
    // listener to be called by blocking on the listener latch.
    taskLatch.countDown();
    assertEquals(25, task.get().intValue());
    assertTrue(listenerLatch.await(5, SECONDS));
    assertTrue(task.isDone());
    assertFalse(task.isCancelled());
  }

  public void testListenerCalledOnException() throws Exception {

        for (int idx = 0; idx < synonyms.size(); idx++) {
            final MyToken synonym = synonyms.get(idx);
            tokenizePartialBlock(nextStart, synonym.startOffset, afterSynonymProduced);

            // enqueue prev-synonym
            processPrevSynonym(synonym.startOffset, idx > 0 ? synonyms.get(idx - 1).endOffset : 0);

            if (expand) {
                queue.add(synonym);
            }

You can learn how to <a href="https://heyapi.dev/openapi-ts/get-started" class="external-link" target="_blank">install `@hey-api/openapi-ts`</a> and read about the <a href="https://heyapi.dev/openapi-ts/output" class="external-link" target="_blank">generated output</a> on their website.

### Using the SDK { #using-the-sdk }

Now you can import and use the client code. It could look like this, notice that you get autocompletion for the methods:

app = FastAPI()


class Cookies(BaseModel):
    model_config = {"extra": "forbid"}

    session_id: str
    fatebook_tracker: Union[str, None] = None
    googall_tracker: Union[str, None] = None


@app.get("/items/")
async def read_items(cookies: Annotated[Cookies, Cookie()]):