// Returns the graph content in a human-readable format, with length set in
// `len`. The format is subject to change in the future.
// The returned string is heap-allocated, and caller should call free() on it.
TF_CAPI_EXPORT extern const char* TF_GraphDebugString(TF_Graph* graph,
                                                      size_t* len);

// Returns the function content in a human-readable format, with length set in

//                 names for outputs will be generated automatically.
//  opts - various options for the function, e.g. XLA's inlining control.
//  description - optional human-readable description of this function.
//  status - Set to OK on success and an appropriate error on failure.
//
// Note that when the same TF_Output is listed as both an input and an output,

                                           TF_TransactionToken** token,
                                           TF_Status* status);

  /// Decodes transaction token in `token` to human readable format for
  /// debugging.
  ///
  /// A new `char*` buffer must be allocated by this method. Core TensorFlow
  /// manages the lifetime of the buffer after the call. Thus, all callers of