def TF_XlaCustomCallV2Op : TF_Op<"XlaCustomCallV2", [Pure]> {
  let summary = "Emits an HLO `CustomCall` operation with multiple outputs.";

  let description = [{
As opposed to `XlaCustomCall`, this operation supports multiple outputs.

See `CustomCall` specification at
  https://tensorflow.org/xla/operation_semantics#customcall,
and `mhlo.custom_call` specification at

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