{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py hl[5,16:19,24] *}

/// info

This is available with Pydantic version 2 or above. 😎

///

/// tip

// Destroy an options object.
TF_CAPI_EXPORT extern void TFE_DeleteContextOptions(TFE_ContextOptions*);

// "Context" under which operations/functions are executed. It encapsulates
// things like the available devices, resource manager etc.
// TFE_Context must outlive all tensor handles created using it. In other
// words, TFE_DeleteContext() must be called after all tensor handles have
// been deleted (with TFE_DeleteTensorHandle).

        try {
            final StandardQueryParser parser = new StandardQueryParser();
            parser.setDefaultOperator(StandardQueryConfigHandler.Operator.AND);

            // Parse with the first field if available, otherwise use "default"
            String defaultField = fields != null && fields.length > 0 ? fields[0] : "default";
            termQueryList = getTermQueryList(parser.parse(q, defaultField), fields);

 *     serverSocket.close();
 *   }
 * }
 * }
 *
 * <p id="cleaner">Here is how you might achieve the same thing using {@link java.lang.ref.Cleaner
 * Cleaner}, if you are using a Java version where that is available:
 *
 * {@snippet :
 * public class MyServer implements Closeable {
 *   private static final Cleaner cleaner = Cleaner.create();
 *   // You might also share this between several objects.
 *

| Params     | Value    |
| :--        | :--      |
| *Type*     | *String* |
| *Required* | *No*     |

### RoleArn

		httpTimeout: config.HTTPTimeout,
	}
	h.status.Store(statusOffline)

	if config.BatchSize > 1 {
		h.payloadType = ""
	} else {
		h.payloadType = "application/json"
	}

	// If proxy available, set the same
	if h.config.Proxy != "" {
		proxyURL, _ := url.Parse(h.config.Proxy)
		transport := h.config.Transport
		if tr, ok := transport.(*http.Transport); ok {
			ctransport := tr.Clone()

        return headersQueue.removeFirst()
      }
      throw errorException ?: StreamResetException(errorCode!!)
    }
  }

  /**
   * Returns the trailers if they're immediately available.
   */
  @Throws(IOException::class)
  fun peekTrailers(): Headers? {
    withLock {
      if (source.finished && source.receiveBuffer.exhausted() && source.readBuffer.exhausted()) {

      }

      @Override
      Type usedInGenericType(Type type) {
        return JAVA7.usedInGenericType(type);
      }

      /*
       * We use this only when getTypeName is available.
       *
       * Well, really, we use this when we think we're running under Java 8, as determined by some
       * logic in the static initializer, which does not check for getTypeName specifically. We

                expectedChecksum = expectedChecksum.substring(lastSpacePos + 1);
            } else {
                // remove everything after the first space (if available)
                int spacePos = expectedChecksum.indexOf(' ');

                if (spacePos != -1) {
                    expectedChecksum = expectedChecksum.substring(0, spacePos);
                }
            }

/// tip

Having the return model ensure that a value is always available and always `int` (not `None`) is very useful for the API clients, they can write much simpler code having this certainty.