};

class MatMulGradientFunction : public GradientFunction {
 public:
  explicit MatMulGradientFunction(vector<AbstractTensorHandle*> f_inputs,
                                  AttrBuilder f_attrs)
      : forward_inputs_(f_inputs), forward_attrs_(f_attrs) {
    for (auto input : forward_inputs_) {
      if (input) {
        input->Ref();
      }
    }
  }

  ASSERT_EQ(TF_OK, TF_GetCode(status.get())) << TF_Message(status.get());
  TF_Tensor* f_t = TFE_TensorHandleResolve(final, status.get());
  ASSERT_EQ(TF_OK, TF_GetCode(status.get())) << TF_Message(status.get());
  float* f_value = static_cast<float*>(TF_TensorData(f_t));
  ASSERT_EQ(*f_value, 4.0);

  TF_DeleteOutputList(add_outputs);
  TF_DeleteAbstractOp(fn_op);
  TF_DeleteAbstractTensor(input_t);

pkg syscall (openbsd-386), type Stat_t struct, Lspare1 int32
pkg syscall (openbsd-386), type Stat_t struct, Qspare [2]int64
pkg syscall (openbsd-386), type Statfs_t struct, F_ctime uint32
pkg syscall (openbsd-386), type Statfs_t struct, F_spare [3]uint32
pkg syscall (openbsd-386), type Timespec struct, Sec int32
pkg syscall (openbsd-386), type Timeval struct, Sec int32
pkg syscall (openbsd-386-cgo), const BIOCGRTIMEOUT = 1074283118

      }
      // Float
      if (const int f_size = default_value.list().f_size()) {
        absl::InlinedVector<float, 4> f_vector;
        f_vector.reserve(f_size);
        for (int i = 0; i < f_size; ++i) {
          f_vector.push_back(default_value.list().f(i));
        }
        TFE_OpSetAttrFloatList(op, attr_name, f_vector.data(), f_size);
      }
      // Bool

	#line 1 "not-declared"
	void __cgo_f_1_1(void) { __typeof__(foo) *__cgo_undefined__1; }
	#line 1 "not-type"
	void __cgo_f_1_2(void) { foo *__cgo_undefined__2; }
	#line 1 "not-int-const"
	void __cgo_f_1_3(void) { enum { __cgo_undefined__3 = (foo)*1 }; }
	#line 1 "not-num-const"
	void __cgo_f_1_4(void) { static const double __cgo_undefined__4 = (foo); }
	#line 1 "not-str-lit"

          "f-_-o.cOM",
          "f--1.com",
          "f11-1.com",
          "www",
          "abc.a23",
          "biz.com.ua",
          "x",
          "fOo",
          "f--o",
          "f_a",
          "foo.net.us\uFF61ocm",
          "woo.com.",
          "8server.shop",
          "123.cn",
          "a" + DELTA + "b.com",
          ALMOST_TOO_MANY_LEVELS,
          ALMOST_TOO_LONG);

          "f-_-o.cOM",
          "f--1.com",
          "f11-1.com",
          "www",
          "abc.a23",
          "biz.com.ua",
          "x",
          "fOo",
          "f--o",
          "f_a",
          "foo.net.us\uFF61ocm",
          "woo.com.",
          "8server.shop",
          "123.cn",
          "a" + DELTA + "b.com",
          ALMOST_TOO_MANY_LEVELS,
          ALMOST_TOO_LONG);

  else
    TF_SetStatus(status, TF_OK, "");
}

static void PathExists(const TF_Filesystem* filesystem, const char* path,
                       TF_Status* status) {
  if (access(path, F_OK) != 0)
    TF_SetStatusFromIOError(status, errno, path);
  else
    TF_SetStatus(status, TF_OK, "");
}

static void Stat(const TF_Filesystem* filesystem, const char* path,

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