used.
  }];
  let options = [
    Option<"legalize_chlo_", "legalize-chlo", "bool", /*default=*/"true",
        "Legalizes intermediate chlo ops to hlo">,
    Option<"use_tf2xla_fallback_", "use-tf2xla-fallback", "bool",
        /*default=*/"false",
        "Use TF2XLA fallback for legalization">,
    Option<"device_type_", "device-type", "std::string",
        /*default=*/"\"INVALID_DEVICE_TYPE\"",