Function IsVariableHelper

tensorflow/python/util/util.cc:283–288

Returns 1 if `o` is a ResourceVariable. Returns 0 otherwise. Returns -1 if an error occurred.

// Returns 0 otherwise.
// Returns -1 if an error occurred.
int IsVariableHelper(PyObject* o) {
  static auto* const check_cache = new CachedTypeCheck([](PyObject* to_check) {
    return IsInstanceOfRegisteredType(to_check, "Variable");
  });
  return check_cache->CachedLookup(o);
}

// Returns 1 if `o` is considered a sequence for the purposes of Flatten().
// Returns 0 otherwise.