TF_Status* status);

// Sets `output_attr_value` to the binary-serialized AttrValue proto
// representation of the value of the `attr_name` attr of `oper`.
TF_CAPI_EXPORT extern void TF_OperationGetAttrValueProto(
    TF_Operation* oper, const char* attr_name, TF_Buffer* output_attr_value,
    TF_Status* status);

// Get the number of attributes the operation has.

// while `op` is alive.
TF_CAPI_EXPORT extern const TFE_OpAttrs* TFE_OpGetAttrs(const TFE_Op* op);
// Add attributes in `attrs` to `op`.
//
// Does not overwrite or update existing attributes, but adds new ones.
TF_CAPI_EXPORT extern void TFE_OpAddAttrs(TFE_Op* op, const TFE_OpAttrs* attrs);

// Serialize `attrs` as a tensorflow::NameAttrList protocol buffer (into `buf`),
// containing the op name and a map of its attributes.