feat: add example_gcs_source to Examples in aiplatform v1beta1 explan…

…ation.proto (#4249)

* feat: add example_gcs_source to Examples in aiplatform v1beta1 explanation.proto

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Source-Link: googleapis/googleapis@7bcbfa7

Source-Link: googleapis/googleapis-gen@59a3738
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packages/google-cloud-aiplatform/protos/google/cloud/aiplatform/v1beta1/explanation.proto

@@ -425,6 +425,30 @@ message BlurBaselineConfig {
 // Example-based explainability that returns the nearest neighbors from the
 // provided dataset.
 message Examples {
+  // The Cloud Storage input instances.
+  message ExampleGcsSource {
+    // The format of the input example instances.
+    enum DataFormat {
+      // Format unspecified, used when unset.
+      DATA_FORMAT_UNSPECIFIED = 0;
+
+      // Examples are stored in JSONL files.
+      JSONL = 1;
+    }
+
+    // The format in which instances are given, if not specified, assume it's
+    // JSONL format. Currently only JSONL format is supported.
+    DataFormat data_format = 1;
+
+    // The Cloud Storage location for the input instances.
+    GcsSource gcs_source = 2;
+  }
+
+  oneof source {
+    // The Cloud Storage input instances.
+    ExampleGcsSource example_gcs_source = 5;
+  }
+
   oneof config {
     // The full configuration for the generated index, the semantics are the
     // same as [metadata][google.cloud.aiplatform.v1beta1.Index.metadata] and