}

    /**
     * Get lifetime of this context.
     *
     * @return the remaining lifetime in seconds. If the default lifetime is
     *         used, this value have no meaning.
     */
    public int getLifeTime() {
        return this.contextLifetime;
    }

    /**
     * Set the lifetime for this context.
     *
     * @param time
     *            the lifetime in seconds

     * @param sessionKey
     * @param label
     * @param context
     */
    private static byte[] derive(final byte[] sessionKey, final byte[] label, final byte[] context) {
        final KDFCounterBytesGenerator gen = new KDFCounterBytesGenerator(new HMac(new SHA256Digest()));

        final int r = 32;
        final byte[] suffix = new byte[label.length + context.length + 5];
        // per bouncycastle

     * Calls the static {@link #authenticate(CIFSContext, HttpServletRequest,
     * HttpServletResponse, byte[])} method to perform NTLM authentication
     * for the specified servlet request.
     *
     * @param tc the CIFS context to use
     *
     * @param req
     *            The request being serviced.
     * @param resp
     *            The response.
     * @param challenge
     *            The domain controller challenge.

     */
    int RPC_PT_FAULT = 0x03;
    /**
     * Bind packet type - establishes context
     */
    int RPC_PT_BIND = 0x0B;
    /**
     * Bind acknowledgment packet type
     */
    int RPC_PT_BIND_ACK = 0x0C;
    /**
     * Bind negative acknowledgment packet type
     */
    int RPC_PT_BIND_NAK = 0x0D;
    /**
     * Alter context packet type
     */
    int RPC_PT_ALTER_CONTEXT = 0x0E;
    /**

    }

    /**
     * Returns the context class loader.
     *
     * @return the context class loader
     */
    public static ClassLoader getClassLoader() {
        return Thread.currentThread().getContextClassLoader();
    }

    /**
     * Returns the resource from the context class loader.
     *
     * @param path

     *
     * @param delegate the underlying SMB transport to wrap
     * @param context the CIFS context for configuration
     */
    public RdmaTransport(SmbTransportInternal delegate, CIFSContext context) {
        this.delegate = delegate;
        this.rdmaProvider = RdmaProviderFactory.getProvider(context.getConfig());
        this.bufferManager = new RdmaBufferManager(rdmaProvider);

		Prefix:    sourcePrefix,
	}

	topts := minio.ListObjectsOptions{
		Recursive: true,
		Prefix:    targetPrefix,
	}

	srcCh := sclnt.ListObjects(context.Background(), sourceBucket, sopts)
	tgtCh := tclnt.ListObjects(context.Background(), targetBucket, topts)

	srcCtnt, srcOk := nextObject(srcCh)
	tgtCtnt, tgtOk := nextObject(tgtCh)

	var srcEOF, tgtEOF bool

	srcSha256 := sha256.New()

        }
    }

    /**
     * Sets the query builder for this context.
     * @param queryBuilder The query builder to use.
     */
    public void setQueryBuilder(final QueryBuilder queryBuilder) {
        this.queryBuilder = queryBuilder;
    }

    /**
     * Adds sort builders to the query context.
     * @param sortBuilders Variable number of sort builders to add.
     */

### Async Context Manager

Si revisas, la función está decorada con un `@asynccontextmanager`.

Eso convierte a la función en algo llamado un "**async context manager**".

{* ../../docs_src/events/tutorial003.py hl[1,13] *}

Un **context manager** en Python es algo que puedes usar en una declaración `with`, por ejemplo, `open()` puede ser usado como un context manager:

```Python

     * @return session instance with the given type
     */
    <T extends SmbSession> T unwrap(Class<T> type);

    /**
     * Returns the CIFS context that this session is attached to.
     *
     * @return the context this session is attached to
     */
    CIFSContext getContext();