sometimes incorrectly ignored.
    *   functions returned by the `get_concrete_function` method of
        `tf.function` objects can now be called with arguments consistent with
        the original arguments or type specs passed to `get_concrete_function`.
        This calling convention is now the preferred way to use concrete

   return %ret : tensor<10x10xf32>
}
'''

@tf.function
def foo(x, y):
  return mlir_passthrough_op([x, y], mlir_module, Toutputs=[tf.float32])

graph_def = foo.get_concrete_function(tf.TensorSpec([10], tf.float32), tf.TensorSpec([10], tf.float32)).graph.as_graph_def()
```
  }];

  let arguments = (ins
    Variadic<TF_Tensor>:$inputs,

    StrAttr:$mlir_module