If I (or someone) can copy it, run it, and see it right away, there's a much higher chance I (or someone) will be able to help you.

      placeholder: |
        from fastapi import FastAPI

        app = FastAPI()


        @app.get("/")
        def read_root():
            return {"Hello": "World"}
      render: python
    validations:
      required: true

En tu aplicación de **FastAPI**, crea un `websocket`:

{* ../../docs_src/websockets/tutorial001_py39.py hl[1,46:47] *}

/// note | Detalles Técnicos

También podrías usar `from starlette.websockets import WebSocket`.

**FastAPI** proporciona el mismo `WebSocket` directamente solo como una conveniencia para ti, el desarrollador. Pero viene directamente de Starlette.

///

このようなケースでは、レスポンスにデータを含める前に `jsonable_encoder` を使ってデータを変換できます。

{* ../../docs_src/response_directly/tutorial001.py hl[6:7,21:22] *}

/// note | 技術詳細

また、`from starlette.responses import JSONResponse` も利用できます。

**FastAPI** は開発者の利便性のために `fastapi.responses` という `starlette.responses` と同じものを提供しています。しかし、利用可能なレスポンスのほとんどはStarletteから直接提供されます。

///

## カスタム `Response` を返す

     */
    public void handleLeaseBreak(Smb2LeaseKey key, int newState) {
        LeaseEntry entry = leases.get(key);
        if (entry != null) {
            log.info("Handling lease break for {} from state 0x{} to 0x{}", key, Integer.toHexString(entry.getLeaseState()),
                    Integer.toHexString(newState));

            entry.setBreaking(true);
            int oldState = entry.getLeaseState();

    // ambiguous without the call to .booleanValue to unbox the Boolean
    checkState(boxedBoolean.booleanValue(), "", 1);
    // ambiguous without the cast to Object because the boxed predicate prevents any overload from
    // being selected in phase 1
    checkState(boxedBoolean, "", (Object) boxedLong);

    // ternaries introduce their own problems. because of the ternary (which requires a boxing

    assertThat(keySet).containsExactly(1, 2, 3, 4, 5, 6, 7, 8, 9);

    // get doesn't stop 1 from expiring
    getAll(cache, asList(0, 1, 2));
    CacheTesting.drainRecencyQueues(cache);
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(2, 3, 4, 5, 6, 7, 8, 9, 0);

    // get(K, Callable) doesn't stop 2 from expiring
    Integer unused = cache.get(2, Callables.returning(-2));

	}
	if crypto.S3.IsRequested(header) || (metadata != nil && crypto.S3.IsEncrypted(metadata)) {
		opts.ServerSideEncryption = encrypt.NewSSE()
	}

	return opts, err
}

// get ObjectOptions for GET calls from encryption headers
func getOpts(ctx context.Context, r *http.Request, bucket, object string) (ObjectOptions, error) {
	var opts ObjectOptions

	var partNumber int
	var err error

     */
    public void setPageNumberList(final List<Integer> pageNumberList) {
        this.pageNumberList = pageNumberList;
    }

    /**
     * Gets the default page size from the Fess configuration.
     *
     * @return the default page size configured in the system
     */
    protected int getDefaultPageSize() {
        return ComponentUtil.getFessConfig().getPagingPageSizeAsInteger();

     */
    public void setPageNumberList(final List<Integer> pageNumberList) {
        this.pageNumberList = pageNumberList;
    }

    /**
     * Gets the default page size from the Fess configuration.
     *
     * @return the default page size
     */
    protected int getDefaultPageSize() {
        return ComponentUtil.getFessConfig().getPagingPageSizeAsInteger();
    }

import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.function.Function;

import org.codelibs.curl.io.ContentCache;

/**
 * The CurlResponse class represents the response from a cURL request.
 * It implements the Closeable interface to allow proper resource management.
 */
public class CurlResponse implements Closeable {

    /**
     * Constructs a new CurlResponse.
     */