feat: Add request metadata types.

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Here's the log from Synthtool:

synthtool > Executing /tmpfs/src/git/autosynth/working_repo/AutoMl/synth.py.
synthtool > Ensuring dependencies.
synthtool > Pulling artman image.
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Digest: sha256:0f66008f69061ea6d41499e2a34da3fc64fc7c9798077e3a37158653a135d801
Status: Downloaded newer image for googleapis/artman:latest
synthtool > Cloning googleapis.
synthtool > Running generator for google/cloud/automl/artman_automl_v1beta1.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/php/google-cloud-automl-v1beta1.
synthtool > Replaced "'serviceAddress' =>" in src/V1beta1/Gapic/AutoMlGapicClient.php.
synthtool > Replaced "'serviceAddress' =>" in src/V1beta1/Gapic/PredictionServiceGapicClient.php.
synthtool > Replaced '@type string \\$serviceAddress\\n\\s+\\*\\s+The address' in src/V1beta1/Gapic/AutoMlGapicClient.php.
synthtool > Replaced '@type string \\$serviceAddress\\n\\s+\\*\\s+The address' in src/V1beta1/Gapic/PredictionServiceGapicClient.php.
synthtool > Replaced '\\$transportConfig, and any \\$serviceAddress' in src/V1beta1/Gapic/AutoMlGapicClient.php.
synthtool > Replaced '\\$transportConfig, and any \\$serviceAddress' in src/V1beta1/Gapic/PredictionServiceGapicClient.php.
synthtool > Replaced 'final class' in src/V1beta1/GetTableSpecRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/ListDatasetsResponse.php.
synthtool > Replaced 'final class' in src/V1beta1/TablesDatasetMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/DeployModelRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/ImageClassificationDatasetMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/ModelExportOutputConfig.php.
synthtool > Replaced 'final class' in src/V1beta1/DeployModelOperationMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/TextExtractionModelMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/DocumentInputConfig.php.
synthtool > Replaced 'final class' in src/V1beta1/ListTableSpecsResponse.php.
synthtool > Replaced 'final class' in src/V1beta1/GcrDestination.php.
synthtool > Replaced 'final class' in src/V1beta1/BatchPredictInputConfig.php.
synthtool > Replaced 'final class' in src/V1beta1/Dataset.php.
synthtool > Replaced 'final class' in src/V1beta1/ImageObjectDetectionModelMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/TranslationDatasetMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/AnnotationSpec.php.
synthtool > Replaced 'final class' in src/V1beta1/Model.php.
synthtool > Replaced 'final class' in src/V1beta1/ExportModelRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/GcsDestination.php.
synthtool > Replaced 'final class' in src/V1beta1/TextSnippet.php.
synthtool > Replaced 'final class' in src/V1beta1/OperationMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/TranslationModelMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/Row.php.
synthtool > Replaced 'final class' in src/V1beta1/BigQueryDestination.php.
synthtool > Replaced 'final class' in src/V1beta1/ImportDataRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/CorrelationStats.php.
synthtool > Replaced 'final class' in src/V1beta1/ExamplePayload.php.
synthtool > Replaced 'final class' in src/V1beta1/VideoObjectTrackingAnnotation.php.
synthtool > Replaced 'final class' in src/V1beta1/GetModelRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/GcsSource.php.
synthtool > Replaced 'final class' in src/V1beta1/Image.php.
synthtool > Replaced 'final class' in src/V1beta1/ImportDataOperationMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/PredictRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/CreateModelOperationMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/StructStats.php.
synthtool > Replaced 'final class' in src/V1beta1/TextExtractionDatasetMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/TimeSegment.php.
synthtool > Replaced 'final class' in src/V1beta1/TextClassificationModelMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/DataStats.php.
synthtool > Replaced 'final class' in src/V1beta1/TextSentimentAnnotation.php.
synthtool > Replaced 'final class' in src/V1beta1/VideoClassificationModelMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/ExportDataRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/UpdateTableSpecRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/VideoClassificationDatasetMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/InputConfig.php.
synthtool > Replaced 'final class' in src/V1beta1/GetDatasetRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/GetColumnSpecRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/UndeployModelOperationMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/ImageObjectDetectionAnnotation.php.
synthtool > Replaced 'final class' in src/V1beta1/BigQuerySource.php.
synthtool > Replaced 'final class' in src/V1beta1/StructType.php.
synthtool > Replaced 'final class' in src/V1beta1/DeleteDatasetRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/OutputConfig.php.
synthtool > Replaced 'final class' in src/V1beta1/ListModelEvaluationsResponse.php.
synthtool > Replaced 'final class' in src/V1beta1/ListDatasetsRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/AnnotationPayload.php.
synthtool > Replaced 'final class' in src/V1beta1/GetAnnotationSpecRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/ExportEvaluatedExamplesRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/GetModelEvaluationRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/DataType.php.
synthtool > Replaced 'final class' in src/V1beta1/ImageObjectDetectionModelDeploymentMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/ListColumnSpecsResponse.php.
synthtool > Replaced 'final class' in src/V1beta1/TextClassificationDatasetMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/TableSpec.php.
synthtool > Replaced 'final class' in src/V1beta1/TextSentimentDatasetMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/ExportEvaluatedExamplesOutputConfig.php.
synthtool > Replaced 'final class' in src/V1beta1/ImageClassificationModelDeploymentMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/DeleteOperationMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/TextSegment.php.
synthtool > Replaced 'final class' in src/V1beta1/ClassificationAnnotation.php.
synthtool > Replaced 'final class' in src/V1beta1/ListModelsRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/BoundingBoxMetricsEntry.php.
synthtool > Replaced 'final class' in src/V1beta1/BatchPredictOutputConfig.php.
synthtool > Replaced 'final class' in src/V1beta1/Document.php.
synthtool > Replaced 'final class' in src/V1beta1/DoubleRange.php.
synthtool > Replaced 'final class' in src/V1beta1/TablesModelColumnInfo.php.
synthtool > Replaced 'final class' in src/V1beta1/PredictResponse.php.
synthtool > Replaced 'final class' in src/V1beta1/DeleteModelRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/NormalizedVertex.php.
synthtool > Replaced 'final class' in src/V1beta1/VideoObjectTrackingDatasetMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/CreateDatasetRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/ListTableSpecsRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/TextSentimentModelMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/DocumentDimensions.php.
synthtool > Replaced 'final class' in src/V1beta1/TextExtractionAnnotation.php.
synthtool > Replaced 'final class' in src/V1beta1/BatchPredictOperationMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/Float64Stats.php.
synthtool > Replaced 'final class' in src/V1beta1/TimestampStats.php.
synthtool > Replaced 'final class' in src/V1beta1/ImageClassificationModelMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/RegressionEvaluationMetrics.php.
synthtool > Replaced 'final class' in src/V1beta1/TextSentimentEvaluationMetrics.php.
synthtool > Replaced 'final class' in src/V1beta1/TablesAnnotation.php.
synthtool > Replaced 'final class' in src/V1beta1/CategoryStats.php.
synthtool > Replaced 'final class' in src/V1beta1/UpdateDatasetRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/ClassificationEvaluationMetrics.php.
synthtool > Replaced 'final class' in src/V1beta1/ExportDataOperationMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/ImageObjectDetectionEvaluationMetrics.php.
synthtool > Replaced 'final class' in src/V1beta1/TextExtractionEvaluationMetrics.php.
synthtool > Replaced 'final class' in src/V1beta1/ModelEvaluation.php.
synthtool > Replaced 'final class' in src/V1beta1/ExportEvaluatedExamplesOperationMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/TranslationEvaluationMetrics.php.
synthtool > Replaced 'final class' in src/V1beta1/ImageObjectDetectionDatasetMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/TranslationAnnotation.php.
synthtool > Replaced 'final class' in src/V1beta1/VideoClassificationAnnotation.php.
synthtool > Replaced 'final class' in src/V1beta1/BatchPredictRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/StringStats.php.
synthtool > Replaced 'final class' in src/V1beta1/BoundingPoly.php.
synthtool > Replaced 'final class' in src/V1beta1/VideoObjectTrackingModelMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/CreateModelRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/ExportModelOperationMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/ListModelsResponse.php.
synthtool > Replaced 'final class' in src/V1beta1/ListColumnSpecsRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/BatchPredictResult.php.
synthtool > Replaced 'final class' in src/V1beta1/UndeployModelRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/UpdateColumnSpecRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/ColumnSpec.php.
synthtool > Replaced 'final class' in src/V1beta1/ArrayStats.php.
synthtool > Replaced 'final class' in src/V1beta1/VideoObjectTrackingEvaluationMetrics.php.
synthtool > Replaced 'final class' in src/V1beta1/TablesModelMetadata.php.
synthtool > Replaced 'final class' in src/V1beta1/ListModelEvaluationsRequest.php.
synthtool > Replaced 'final class' in src/V1beta1/ClassificationEvaluationMetrics/ConfidenceMetricsEntry.php.
synthtool > Replaced 'final class' in src/V1beta1/ClassificationEvaluationMetrics/ConfusionMatrix.php.
synthtool > Replaced 'final class' in src/V1beta1/ClassificationEvaluationMetrics/ConfusionMatrix/Row.php.
synthtool > Replaced 'final class' in src/V1beta1/ExportModelOperationMetadata/ExportModelOutputInfo.php.
synthtool > Replaced 'final class' in src/V1beta1/BatchPredictOperationMetadata/BatchPredictOutputInfo.php.
synthtool > Replaced 'final class' in src/V1beta1/CategoryStats/SingleCategoryStats.php.
synthtool > Replaced 'final class' in src/V1beta1/BoundingBoxMetricsEntry/ConfidenceMetricsEntry.php.
synthtool > Replaced 'final class' in src/V1beta1/Float64Stats/HistogramBucket.php.
synthtool > Replaced 'final class' in src/V1beta1/TimestampStats/GranularStats.php.
synthtool > Replaced 'final class' in src/V1beta1/ColumnSpec/CorrelatedColumn.php.
synthtool > Replaced 'final class' in src/V1beta1/StringStats/UnigramStats.php.
synthtool > Replaced 'final class' in src/V1beta1/Document/Layout.php.
synthtool > Replaced 'final class' in src/V1beta1/ExportEvaluatedExamplesOperationMetadata/ExportEvaluatedExamplesOutputInfo.php.
synthtool > Replaced 'final class' in src/V1beta1/TextExtractionEvaluationMetrics/ConfidenceMetricsEntry.php.
synthtool > Replaced 'final class' in src/V1beta1/ExportDataOperationMetadata/ExportDataOutputInfo.php.
synthtool > No replacements made in src/V*/**/*.php for pattern public function ([s|g]\w{3,})Unwrapped, maybe replacement is not longer needed?
synthtool > Replaced 'Copyright \\d{4}' in src/V1beta1/Gapic/AutoMlGapicClient.php.
synthtool > Replaced 'Copyright \\d{4}' in src/V1beta1/Gapic/PredictionServiceGapicClient.php.
synthtool > Replaced 'Copyright \\d{4}' in tests/System/V1beta1/AutoMlSmokeTest.php.
synthtool > Replaced 'Copyright \\d{4}' in tests/Unit/V1beta1/AutoMlClientTest.php.
synthtool > Replaced 'Copyright \\d{4}' in tests/Unit/V1beta1/PredictionServiceClientTest.php.
synthtool > Replaced 'new AutoMlClient' in src/V1beta1/Gapic/AutoMlGapicClient.php.
synthtool > No replacements made in src/V1beta1/Gapic/AutoMlGapicClient.php for pattern new PredictionServiceClient, maybe replacement is not longer needed?
synthtool > No replacements made in src/V1beta1/Gapic/AutoMlGapicClient.php for pattern = AudioEncoding::, maybe replacement is not longer needed?
synthtool > Replaced 'new Dataset' in src/V1beta1/Gapic/AutoMlGapicClient.php.
synthtool > Replaced '= new ModelExportOutputConfig' in src/V1beta1/Gapic/AutoMlGapicClient.php.
synthtool > Replaced '= new ExportEvaluatedExamplesOutputConfig' in src/V1beta1/Gapic/AutoMlGapicClient.php.
synthtool > Replaced '= new TableSpec' in src/V1beta1/Gapic/AutoMlGapicClient.php.
synthtool > Replaced '= new ColumnSpec' in src/V1beta1/Gapic/AutoMlGapicClient.php.
synthtool > No replacements made in src/V1beta1/Gapic/AutoMlGapicClient.php for pattern = new BatchPredictInputConfig, maybe replacement is not longer needed?
synthtool > No replacements made in src/V1beta1/Gapic/AutoMlGapicClient.php for pattern = new BatchPredictOutputConfig, maybe replacement is not longer needed?
synthtool > No replacements made in src/V1beta1/Gapic/PredictionServiceGapicClient.php for pattern new AutoMlClient, maybe replacement is not longer needed?
synthtool > Replaced 'new PredictionServiceClient' in src/V1beta1/Gapic/PredictionServiceGapicClient.php.
synthtool > No replacements made in src/V1beta1/Gapic/PredictionServiceGapicClient.php for pattern = AudioEncoding::, maybe replacement is not longer needed?
synthtool > No replacements made in src/V1beta1/Gapic/PredictionServiceGapicClient.php for pattern new Dataset, maybe replacement is not longer needed?
synthtool > No replacements made in src/V1beta1/Gapic/PredictionServiceGapicClient.php for pattern = new ModelExportOutputConfig, maybe replacement is not longer needed?
synthtool > No replacements made in src/V1beta1/Gapic/PredictionServiceGapicClient.php for pattern = new ExportEvaluatedExamplesOutputConfig, maybe replacement is not longer needed?
synthtool > No replacements made in src/V1beta1/Gapic/PredictionServiceGapicClient.php for pattern = new TableSpec, maybe replacement is not longer needed?
synthtool > No replacements made in src/V1beta1/Gapic/PredictionServiceGapicClient.php for pattern = new ColumnSpec, maybe replacement is not longer needed?
synthtool > Replaced '= new BatchPredictInputConfig' in src/V1beta1/Gapic/PredictionServiceGapicClient.php.
synthtool > Replaced '= new BatchPredictOutputConfig' in src/V1beta1/Gapic/PredictionServiceGapicClient.php.
synthtool > Cleaned up 1 temporary directories.
synthtool > Wrote metadata to synth.metadata.

[codecov]

Codecov Report

Merging #2346 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #2346   +/-   ##
=========================================
  Coverage     92.49%   92.49%           
  Complexity     4479     4479           
=========================================
  Files           311      311           
  Lines         13358    13358           
=========================================
  Hits          12355    12355           
  Misses         1003     1003

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