// places it into *val. *status is set to TF_OK.
//
// If the attribute could not be found or could not be interpreted as
// bool, *status is populated with an error.
TF_CAPI_EXPORT extern void TF_OpKernelConstruction_GetAttrBool(
    TF_OpKernelConstruction* ctx, const char* attr_name, TF_Bool* val,
    TF_Status* status);

// Interprets the named kernel construction attribute as string and
// places it into *val. `val` must

    unsigned char val;
    TF_Status* status = TF_NewStatus();
    EXPECT_TF_SIZE(/*attr_name*/ "Attr", /*expected_list_size*/ -1,
                   /*expected_total_size*/ -1);
    TF_OpKernelConstruction_GetAttrBool(ctx, "Attr", &val, status);
    EXPECT_EQ(TF_OK, TF_GetCode(status)) << TF_Message(status);
    EXPECT_EQ(1, val);
    TF_DeleteStatus(status);
    return static_cast<void*>(s);
  };