"tf._UnknownSideEffectingOp_"() : () -> ()
        // expected-remark@above {{ID: 0}}
        // expected-remark@above {{Successors: {1}}}
        "tf._InternalTestNonResourceValueSideEffects_"(%arg0) : (tensor<!tf_type.string>) -> ()
        // expected-remark@above {{ID: 1}}
        // expected-remark@above {{Predecessors: {0}}}
        // expected-remark@above {{Successors: {2}}}

// TODO(mgester) We should have an extension of TF dialect only for testing so
// TF dialect is not polluted with test ops.
def TF__InternalTestNonResourceValueSideEffects_ : TF_Op<"_InternalTestNonResourceValueSideEffects_", []> {
  let summary = "Internal op for testing only";

  let arguments = (ins
    Arg<TF_StrTensor,"", [TF_DatasetIteratorRead, TF_DatasetIteratorWrite]>:$key
  );
  let results = (outs);