mainVariantImplementation[label=<main<i>Variant</i>Implementation>]
  }

  subgraph left {
    node[style=filled, fillcolor="#cfe2f3"]
    cppCompileVariant -> nativeLinkVariant -> nativeRuntimeVariant [style=invis, weight=1000]

    cppCompileVariant[label=<cppCompile<i>Variant</i> (R)>]
    nativeLinkVariant[label=<nativeLink<i>Variant</i> (R)>]
    nativeRuntimeVariant[label=<nativeRuntime<i>Variant</i> (R)>]

      output_types = [!tf_type.string],
      metadata = ""} : (
              tensor<4xf32>,
              tensor<3xf32>,
              tensor<!tf_type.resource>,
              tensor<2xf32>) -> tensor<!tf_type.variant>
  return
}

// -----

func.func @testIncompleteGeneratorDataset() {
  // expected-error@+1 {{'tf.GeneratorDataset' op failed to convert to region form}}
  %0 = "tf.GeneratorDataset"() {

  string hub = 2;

  // The container image tag to pull. Image will be `Hub/Image:Tag-Variant`.
  google.protobuf.Value tag = 3;

  // The container image variant to pull. Options are "debug" or "distroless". Unset will use the default for the given version.
  string variant = 29;

  // Image name to pull from. Image will be `Hub/Image:Tag-Variant`.

> Task :dependencyInsight
io.vertx:vertx-lang-groovy:3.9.4
  Variant runtime:
    | Attribute Name                 | Provided     | Requested    |
    |--------------------------------|--------------|--------------|
    | org.gradle.status              | release      |              |
    | org.gradle.category            | library      | library      |
    | org.gradle.libraryelements     | jar          | jar          |

      %arg0 : tensor<!tf_type.variant>,
      %arg1: tensor<i64>
    ) {
    // CHECK: tf.ReduceDataset
    %1 = "tf.ReduceDataset"(%arg0, %arg1) {
      Targuments = [],
      Tstate = [i64], device = "",
      f = @__reduce_func_0, f._tf_data_function = true,
      output_shapes = [#tf_type.shape<>],
      output_types = [i64], use_inter_op_parallelism = true } : (tensor<!tf_type.variant>, tensor<i64>) -> (tensor<i64>)
    func.return

#
# The "runtime/cgo" import found in synthesized .go files (reported in
# the CompiledGoFiles field) should have a corresponding entry in the
# ImportMap field when a runtime/cgo variant (such as a test variant)
# will be used.

[short] skip  # -compiled can be slow (because it compiles things)
[!cgo] skip
[GOOS:darwin] skip # net package does not import "C" on Darwin

        %3 = "tf.OptionalHasValue"(%2) : (tensor<!tf_type.variant>) -> tensor<i1>
        %4 = "tf.IfRegion"(%3) ({
          %5 = "tf.OptionalGetValue"(%2) : (tensor<!tf_type.variant>) -> tensor<32xf32>

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   2. Grant of Copyright License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable

      "Contributor" shall mean Licensor and any individual or Legal Entity
      on behalf of whom a Contribution has been received by Licensor and
      subsequently incorporated within the Work.

   2. Grant of Copyright License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable

      "Contributor" shall mean Licensor and any individual or Legal Entity
      on behalf of whom a Contribution has been received by Licensor and
      subsequently incorporated within the Work.

   2. Grant of Copyright License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable