// Sets a thread-local device placement policy. After this call, other calls to
// TFE_Execute in the same thread will use the device policy specified here
// instead of the device policy used to construct the context. This has no
// effect on the device policy used by other program threads.
TF_CAPI_EXPORT extern void TFE_ContextSetThreadLocalDevicePlacementPolicy(
    TFE_Context* ctx, TFE_ContextDevicePlacementPolicy policy);

TF_CAPI_EXPORT extern void TF_FunctionToFunctionDef(TF_Function* func,
                                                    TF_Buffer* output_func_def,
                                                    TF_Status* status);

// Construct and return the function whose FunctionDef representation is
// serialized in `proto`. `proto_len` must equal the number of bytes
// pointed to by `proto`.
// Returns: