Function IsResourceVariable

tensorflow/python/util/util.cc:847–849

bool IsAttrs(PyObject* o) { return IsAttrsHelper(o) == 1; }
bool IsTensor(PyObject* o) { return IsTensorHelper(o) == 1; }
bool IsResourceVariable(PyObject* o) {
  return IsResourceVariableHelper(o) == 1;
}
bool IsVariable(PyObject* o) { return IsVariableHelper(o) == 1; }
bool IsIndexedSlices(PyObject* o) { return IsIndexedSlicesHelper(o) == 1; }