#ifdef __cplusplus
extern "C" {
#endif  // __cplusplus

// An opaque type that containing metadata of an input/output of a
// ConcreteFunction loaded from a SavedModel.
typedef struct TF_SignatureDefParamList TF_SignatureDefParamList;

// Returns the size of `list`.
TF_CAPI_EXPORT extern size_t TF_SignatureDefParamListSize(
    const TF_SignatureDefParamList* list);

// struct, since the lifetime of the struct and the raw pointer it wraps would
// be different. Therefore TF_ConcreteFunction* = tensorflow::ConcreteFunction*.
typedef struct TF_ConcreteFunction TF_ConcreteFunction;

namespace tensorflow {

DEFINE_CONVERSION_FUNCTIONS(tensorflow::ConcreteFunction, TF_ConcreteFunction)

}  // namespace tensorflow

#ifdef __cplusplus
extern "C" {
#endif  // __cplusplus

// An opaque type that corresponds to a SignatureDefFunction loaded from a
// SavedModel.
typedef struct TF_SignatureDefFunctionMetadata TF_SignatureDefFunctionMetadata;

// Retrieves the arguments of the SignatureDefFunction. The caller is not
// responsible for freeing the returned pointer.

#ifdef __cplusplus
extern "C" {
#endif

// TF_Device is a C wrapper to the C++ TF Device class. This is to be passed
// through TF_OpKernelContext, and is opaque to plugin.
typedef struct TF_Device TF_Device;

typedef struct TF_VariableInfo TF_VariableInfo;

// Returns a `TF_Device` pointer, which actually points to a C++ `Device`.
// Currently we only allow `NextPluggableDevice` to be casted as `TF_Device`,

  __attribute__((visibility("default"))) __attribute((weak))
#else
#define TF_CAPI_EXPORT __attribute__((visibility("default")))
#endif  // TF_CAPI_WEAK
#endif  // _WIN32
#endif  // SWIG

// TF_Bool is the C API typedef for unsigned char, while TF_BOOL is
// the datatype for boolean tensors.
#ifndef TF_Bool
#define TF_Bool unsigned char
#endif  // TF_Bool

// Macro used to calculate struct size for maintaining ABI stability across

#ifdef __cplusplus
extern "C" {
#endif  // __cplusplus

// An opaque type that containing metadata of an input/output of a
// TF_SignatureDefFunction loaded from a SavedModel.
typedef struct TF_SignatureDefParam TF_SignatureDefParam;

// Returns the name of the given parameter. The caller is not responsible for
// freeing the returned char*.
TF_CAPI_EXPORT extern const char* TF_SignatureDefParamName(

 * honored for all pthreads (by default), and this in turn with cgo
 * ensures that all Go threads launched with cgo are kept in sync for
 * these function calls.
 */

// argset_t matches runtime/cgocall.go:argset.
typedef struct {
	uintptr_t* args;
	uintptr_t retval;
} argset_t;

// libc backed posix-compliant syscalls.

#define SET_RETVAL(fn) \
  uintptr_t ret = (uintptr_t) fn ; \
  if (ret == (uintptr_t) -1) {	   \

  int64_t* dims;
  // The data type. May be 0 to denote unknown type.
  TF_DataType dtype;
};

typedef struct TF_ShapeAndType TF_ShapeAndType;

// A list of TF_ShapeAndType elements..
struct TF_ShapeAndTypeList {
  int num_items;
  TF_ShapeAndType* items;
};
typedef struct TF_ShapeAndTypeList TF_ShapeAndTypeList;

// API for manipulating TF_ShapeAndTypeList objects.
//

  ///
  /// This is a map of `Output` objects returned by op-constructors to the value
  /// to feed them with. See `Input::Initializer` for details on what can be
  /// used as feed values.
  typedef std::unordered_map<Output, Input::Initializer, OutputHash> FeedType;

  /// Create a new session to evaluate the graph contained in `scope` by
  /// connecting to the TensorFlow runtime specified by `target`.

//
// By default, TF_Buffer itself does not do any memory management of the
// pointed-to block.  If need be, users of this struct should specify how to
// deallocate the block by setting the `data_deallocator` function pointer.
typedef struct TF_Buffer {
  const void* data;
  size_t length;
  void (*data_deallocator)(void* data, size_t length);
} TF_Buffer;

// Makes a copy of the input and sets an appropriate deallocator.  Useful for