Function IsAttrs

tensorflow/python/util/util.cc:845–845

bool IsMapping(PyObject* o) { return IsMappingHelper(o) == 1; }
bool IsMappingView(PyObject* o) { return IsMappingViewHelper(o) == 1; }
bool IsAttrs(PyObject* o) { return IsAttrsHelper(o) == 1; }
bool IsTensor(PyObject* o) { return IsTensorHelper(o) == 1; }
bool IsResourceVariable(PyObject* o) {
  return IsResourceVariableHelper(o) == 1;