Turn a Tensor into a tf.Tensor.

    Args:
      x: Tensor.

    Returns:
      tf.Tensor.

def export_to_tf_tensor(self, x):
    """Turn a Tensor into a tf.Tensor.

    Args:
      x: Tensor.

    Returns:
      tf.Tensor.
    """
    mesh_impl = self.mesh_impl(x)
    return mesh_impl.export_to_tf_tensor(
        x, self.tensors[x].to_laid_out_tensor())