#include "mlir/IR/Visitors.h"  // from @llvm-project
#include "mlir/Support/LogicalResult.h"  // from @llvm-project

namespace mlir {
namespace TF {

// Walks the function by following function call chains and calling the callback
// for each reachable function (including `func`). Each function is visited only
// once even if it's called from multiple places and/or recursively.
//

	// It is a colon separated list of directories.
	// See https://www.openssl.org/docs/man1.0.2/man1/c_rehash.html.
	certDirEnv = "SSL_CERT_DIR"
)

func (c *Certificate) systemVerify(opts *VerifyOptions) (chains [][]*Certificate, err error) {
	return nil, nil
}

func loadSystemRoots() (*CertPool, error) {
	roots := NewCertPool()

	files := certFiles
	if f := os.Getenv(certFileEnv); f != "" {
		files = []string{f}

	if chain != nil {
		sort.SliceStable(chain.Rules, func(i, j int) bool {
			return orderByCommentServiceName(chain.Rules[i], chain.Rules[j])
		})
	}
	chain, _ = dump.GetChain(utiliptables.TableNAT, kubeNodePortsChain)
	if chain != nil {
		sort.SliceStable(chain.Rules, func(i, j int) bool {
			return orderByCommentServiceName(chain.Rules[i], chain.Rules[j])
		})
	}

		}
	}

	chain := [][]*Certificate{{}}
	numCerts := macOS.SecTrustGetCertificateCount(trustObj)
	for i := 0; i < numCerts; i++ {
		certRef, err := macOS.SecTrustGetCertificateAtIndex(trustObj, i)
		if err != nil {
			return nil, err
		}
		cert, err := exportCertificate(certRef)
		if err != nil {
			return nil, err
		}
		chain[0] = append(chain[0], cert)
	}
	if len(chain[0]) == 0 {

}

// NewLevelHandler returns a LevelHandler with the given level.
// All methods except Enabled delegate to h.
func NewLevelHandler(level slog.Leveler, h slog.Handler) *LevelHandler {
	// Optimization: avoid chains of LevelHandlers.
	if lh, ok := h.(*LevelHandler); ok {
		h = lh.Handler()
	}
	return &LevelHandler{level, h}
}

// Enabled implements Handler.Enabled by reporting whether

import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import junit.framework.TestCase;

/**
 * Unit tests for any listenable future that chains other listenable futures. Unit tests need only
 * override buildChainingFuture and getSuccessfulResult, but they can add custom tests as needed.
 *
 * @author Nishant Thakkar
 */

    }

    @Requires(UnitTestPreconditions.CanInstallExecutable)
    @RequiresInstalledToolChain(ToolChainRequirement.GCC)
    @ToBeFixedForConfigurationCache
    def "can build with multiple tool chains"() {
        AvailableToolChains.InstalledToolChain x86ToolChain = OperatingSystem.current().isWindows() ?
                AvailableToolChains.getToolChain(ToolChainRequirement.VISUALCPP) :

	// Inversion is implemented as exponentiation by n - 2, per Fermat's little theorem.
	//
	// The sequence of 38 multiplications and 254 squarings is derived from
	// https://briansmith.org/ecc-inversion-addition-chains-01#p256_scalar_inversion
	_1 := new(p256OrdElement)
	_11 := new(p256OrdElement)
	_101 := new(p256OrdElement)
	_111 := new(p256OrdElement)
	_1111 := new(p256OrdElement)
	_10101 := new(p256OrdElement)

                U result = mapper.apply(value);
                return Objects.requireNonNull(result, "Mapping a Deferrable to null is not allowed");
            }
        };
    }

    /**
     * Chains two {@link Deferrable}s.
     *
     * @param mapper A function which creates the next {@link Deferrable} from the result of the first one.

	}
	cert, err := ParsePemEncodedCertificate(certBytes)
	if err != nil {
		return fmt.Errorf("failed to parse cert PEM: %v", err)
	}
	chains, err := cert.Verify(opts)

	if len(chains) == 0 || err != nil {
		return fmt.Errorf(
			"cannot verify the cert with the provided root chain and cert "+
				"pool with error: %v", err)
	}

	// Verify that the key can be correctly parsed.