const char* attr_name, absl::Span<string const> values) {
  std::vector<const char*> raw_strs;
  std::vector<size_t> lengths;
  raw_strs.reserve(values.size());
  lengths.reserve(values.size());
  for (const auto& s : values) {
    raw_strs.emplace_back(s.data());
    lengths.emplace_back(s.size());
  }
  return SetAttrStringList(attr_name,
                           reinterpret_cast<const void**>(raw_strs.data()),

                                 const char* value, size_t length,
                                 ForwardOperation*);
absl::Status SetAttrTensor(AbstractOperation*, const char* attr_name,
                           AbstractTensorInterface* tensor, ForwardOperation*);
absl::Status SetAttrStringList(AbstractOperation*, const char* attr_name,
                               const void* const* values, const size_t* lengths,

                          std::vector<int64_t> shape,
                          std::vector<int64_t> strides) {
  size_t num_elements = 1;
  for (int i = 0; i < static_cast<int32_t>(shape.size()); ++i) {
    num_elements *= shape[i];
  }
  std::vector<float> data(num_elements);
  for (size_t j = 0; j < num_elements; ++j) {
    data[j] = j;
  }
  DLManagedTensor dlm_in = {};
  DLTensor* dltensor_in = &dlm_in.dl_tensor;

 public:
  virtual void Clear() = 0;

  // Returns the inputs of this op.
  virtual absl::Span<ImmediateExecutionTensorHandle* const> GetInputs()
      const = 0;
  virtual absl::Status SetInput(size_t index,
                                ImmediateExecutionTensorHandle* input) = 0;

  virtual ImmediateExecutionContext* GetContext() const = 0;

  // Following two methods are used to support custom device.

  if (!TF_StringStreamNext(s, &path)) {
    fprintf(stderr, "TF_GetLocalTempDirectories returned no results\n");
    return 1;
  }

  char file_name[100];
  time_t t = time(NULL);
  snprintf(file_name, sizeof(file_name), "test-%d-%ld.txt", getpid(), t);

  size_t length = 2 + strlen(path) + strlen(file_name);
  char* full_path = malloc(length);
  snprintf(full_path, length, "%s/%s", path, file_name);

  TF_WritableFileHandle* h;

		return
	}
	z.init = true
	C.mpz_init(&z.i[0])
}

// Bytes returns z's representation as a big-endian byte array.
func (z *Int) Bytes() []byte {
	b := make([]byte, (z.Len()+7)/8)
	n := C.size_t(len(b))
	C.mpz_export(unsafe.Pointer(&b[0]), &n, 1, 1, 1, 0, &z.i[0])
	return b[0:n]
}

// Len returns the length of z in bits.  0 is considered to have length 1.
func (z *Int) Len() int {
	z.doinit()

		uint32_t sid_index;
	} LsarTranslatedSid;

	typedef struct {
		[range(0,1000)] uint32_t count;
		[size_is(count)] LsarTranslatedSid *sids;
	} LsarTransSidArray;

	typedef struct {
		unicode_string name;
		sid_t *sid;
	} LsarTrustInformation;

	typedef struct {
		[range(0,1000)] uint32_t count;
		[size_is(count)] LsarTrustInformation *domains;
		uint32_t max_count;
	} LsarRefDomainList;

	typedef struct {

		uint32_t sid_index;
	} LsarTranslatedSid;

	typedef struct {
		[range(0,1000)] uint32_t count;
		[size_is(count)] LsarTranslatedSid *sids;
	} LsarTransSidArray;

	typedef struct {
		unicode_string name;
		sid_t *sid;
	} LsarTrustInformation;

	typedef struct {
		[range(0,1000)] uint32_t count;
		[size_is(count)] LsarTrustInformation *domains;
		uint32_t max_count;
	} LsarRefDomainList;

	typedef struct {

	 *    UCHAR SubAuthorityCount;
	 *    SID_IDENTIFIER_AUTHORITY IdentifierAuthority;
	 *    [size_is(SubAuthorityCount)] ULONG SubAuthority[*];
	 * } SID, *PSID;
	 */

	typedef struct {
		uint8_t revision;
		uint8_t sub_authority_count;
		uint8_t identifier_authority[6];
		[size_is(sub_authority_count)] uint32_t sub_authority[*];
	} sid_t;

	 *    UCHAR SubAuthorityCount;
	 *    SID_IDENTIFIER_AUTHORITY IdentifierAuthority;
	 *    [size_is(SubAuthorityCount)] ULONG SubAuthority[*];
	 * } SID, *PSID;
	 */

	typedef struct {
		uint8_t revision;
		uint8_t sub_authority_count;
		uint8_t identifier_authority[6];
		[size_is(sub_authority_count)] uint32_t sub_authority[*];
	} sid_t;