const char* attr_name,
                                            const void* value, size_t length);
// `values` and `lengths` each must have lengths `num_values`.
// `values[i]` must point to a string of length `lengths[i]` bytes.
TF_CAPI_EXPORT extern void TF_SetAttrStringList(TF_OperationDescription* desc,
                                                const char* attr_name,

    assertFalse(elementsEqual(b.iterator(), a.iterator()));

    // Different lengths.
    a = asList(4, 8, 15, 16, 23);
    b = asList(4, 8, 15, 16, 23, 42);
    assertFalse(elementsEqual(a.iterator(), b.iterator()));
    assertFalse(elementsEqual(b.iterator(), a.iterator()));

    // Different lengths, one is empty.
    a = emptySet();
    b = asList(4, 8, 15, 16, 23, 42);

    assertFalse(elementsEqual(b.iterator(), a.iterator()));

    // Different lengths.
    a = asList(4, 8, 15, 16, 23);
    b = asList(4, 8, 15, 16, 23, 42);
    assertFalse(elementsEqual(a.iterator(), b.iterator()));
    assertFalse(elementsEqual(b.iterator(), a.iterator()));

    // Different lengths, one is empty.
    a = emptySet();
    b = asList(4, 8, 15, 16, 23, 42);

  TFE_TensorHandle* input2 = TestMatrixTensorHandle(ctx);
  TFE_Op* identityOp = TFE_NewOp(ctx, "IdentityN", status);
  CHECK_EQ(TF_OK, TF_GetCode(status)) << TF_Message(status);

  // Try to retrieve lengths before building the attributes (should fail)
  EXPECT_EQ(-1, TFE_OpGetInputLength(identityOp, "input", status));
  CHECK_NE(TF_OK, TF_GetCode(status)) << TF_Message(status);

		}
		rec := httptest.NewRecorder()
		apiRouter.ServeHTTP(rec, req)
		checkRespErr(rec, http.StatusOK)
	} else {
		// Multipart upload - each part is a new DummyDataGen
		// (so the part lengths are required to verify the
		// object when reading).

		// Initiate mp upload
		reqI, err := newTestSignedRequestV4(http.MethodPost, getNewMultipartURL("", bucketName, objectName),